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omr-ws-521c51594659f0b8ed8eff341ebf83e92afab9a9cee6f9385194d281c67404a9
Assume that both the attacking player and the defending player have exactly \( m \ge 4 \) pieces on each of their territories. Calculate which player has the greater chance of winning a single round (i.e., each player throws their dice once. Consider that a tie (each player loses one piece) does not mean a victory for ...
[ "\\text{Attacking player}" ]
[ "Assume that both the attacking player and the defending player have exactly \\( m \\ge 4 \\) pieces on each of their territories. Calculate which player has the greater chance of winning a single round (i.e., each player throws their dice once. Consider that a tie (each player loses one piece) does not mean a vict...
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 15, "genselect": 1 }
16
0
0
omr-ws-d908e7709db55f231db8cb5744edcffe57083570f48bda23537721e7fe6632da
Assume that desserts have an equal probability of being a cake or ice cream and a uniform probability of being any of the following 7 flavors: chocolate, vanilla, strawberry, coconut, cookies & cream, fudge, and raspberry. If Andrew has two desserts and at least one is chocolate flavored ice cream, what is the probabil...
[ "\\(\\frac{7}{105}\\)" ]
[ "Assume that desserts have an equal probability of being a cake or ice cream and a uniform probability of being any of the following 7 flavors: chocolate, vanilla, strawberry, coconut, cookies & cream, fudge, and raspberry. If Andrew has two desserts and at least one is chocolate flavored ice cream, what is the pro...
[ "aops_c4_high_school_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-ecf6853fb9a59d1de779a1bb3292b8d4a2cc447bdb9dde955dc3864f36e692bb
Assume that earthquakes strike a certain region at random times that are exponentially distributed with mean 1 year. Volcanic eruptions take place at random times that are exponentially distributed with mean 2 years. What is the probability that there will be two earthquakes before the next volcanic eruption?
[ "\\dfrac{4}{9}" ]
[ "Assume that earthquakes strike a certain region at random times that are exponentially distributed with mean 1 year. Volcanic eruptions take place at random times that are exponentially distributed with mean 2 years. What is the probability that there will be two earthquakes before the next volcanic eruption?" ]
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-b56b57d312f17f5117208ab1357ae8d74154c127019e70c00e99821f54e3bfff
Assume that for \( i=1,2,\ldots,n \), \( a_i > 0 \) and \( b_i > 0 \), and \(\sum_{i=1}^{n} a_i = a\) and \(\sum_{i=1}^{n} b_i = b\). Given \(a = 5\) and \(b = 7\), find the maximum possible value of \(\sum_{i=1}^{n} \frac{a_i b_i}{a_i + b_i}\).
[ "\\dfrac{35}{12}" ]
[ "Assume that for \\( i=1,2,\\ldots,n \\), \\( a_i > 0 \\) and \\( b_i > 0 \\), and \\(\\sum_{i=1}^{n} a_i = a\\) and \\(\\sum_{i=1}^{n} b_i = b\\). Given \\(a = 5\\) and \\(b = 7\\), find the maximum possible value of \\(\\sum_{i=1}^{n} \\frac{a_i b_i}{a_i + b_i}\\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-98366e770453f0e852e37e7bb54eb264250319f4876c382f418fac9c2e0162a0
Assume that for pairwise distinct real numbers \(a, b, c, d\) the following holds: \[ (a^2 + b^2 - 1)(a + b) = (b^2 + c^2 - 1)(b + c) = (c^2 + d^2 - 1)(c + d). \] Calculate the value of \(a + b + c + d\) given that \(a = -d\) and \(b = -c\).
[ "0" ]
[ "Assume that for pairwise distinct real numbers \\(a, b, c, d\\) the following holds:\n\\[ (a^2 + b^2 - 1)(a + b) = (b^2 + c^2 - 1)(b + c) = (c^2 + d^2 - 1)(c + d). \\]\nCalculate the value of \\(a + b + c + d\\) given that \\(a = -d\\) and \\(b = -c\\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-9ca3e42658310a5fcb8adbd221ad770fa02d0a0b407df0b96bd1748a037b51fb
Assume that from the set \( X = \{ x \in \mathbb{N} \mid 0 < x \leq 2013 \} \), we choose 673 numbers. Let \( S \) be the set of all possible values of \( |a - b| \) for any two chosen numbers \( a \) and \( b \). Calculate the sum of all elements in \( S \) that satisfy \( 671 \leq |a - b| \leq 1342 \).
[ "676368" ]
[ "Assume that from the set \\( X = \\{ x \\in \\mathbb{N} \\mid 0 < x \\leq 2013 \\} \\), we choose 673 numbers. Let \\( S \\) be the set of all possible values of \\( |a - b| \\) for any two chosen numbers \\( a \\) and \\( b \\). Calculate the sum of all elements in \\( S \\) that satisfy \\( 671 \\leq |a - b| \\l...
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 4 }
4
0
0
omr-ws-951d59cdffec84f5cc38cdcd8d1b8e18f638f636a3fabbb6fbc955c246c790f9
Assume that integers \(a\), \(b\), \(c\), and \(d\) satisfy \(a > b > c > d > 0\) and \(a^2 + ac - c^2 = b^2 + bd - d^2\). Find the smallest possible value of \(ab + cd\).
[ "377" ]
[ "Assume that integers \\(a\\), \\(b\\), \\(c\\), and \\(d\\) satisfy \\(a > b > c > d > 0\\) and \\(a^2 + ac - c^2 = b^2 + bd - d^2\\). Find the smallest possible value of \\(ab + cd\\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 2 }
2
0
0
omr-ws-405c1cdc9bda528a8c4fa10632c166c9df9d28243413c8844ae77d25ed5bf05c
Assume that oil spilled from a ruptured tanker spreads in a circular pattern whose radius increases at a constant rate of 2 ft/s. How fast is the area increasing when the radius of the spill is 60 ft?
[ "240\\pi" ]
[ "Assume that oil spilled from a ruptured tanker spreads in a circular pattern whose radius increases at a constant rate of 2 ft/s. How fast is the area increasing when the radius of the spill is 60 ft?" ]
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-8082c2102e4243b7c0325d6c920a6e543e77125b13a6304ba88ab7613e918eca
Assume that pentagon $AKHIL$ can be inscribed into a circle. Let $U$ be the intersection of diagonals $AH$ and $KI$, and let $M$ be the intersection of $UL$ and $AI$. Furthermore, assume that $|HU|=4\cdot|KU|$, $|UM|=2\cdot|LM|$, and $[AUK]+[HUI]=5$, where $|\cdot|$ denotes the length of the corresponding segment, and ...
[ "\\frac{10\\sqrt{6}}{17}" ]
[ "Assume that pentagon $AKHIL$ can be inscribed into a circle. Let $U$ be the intersection of diagonals $AH$ and $KI$, and let $M$ be the intersection of $UL$ and $AI$. Furthermore, assume that $|HU|=4\\cdot|KU|$, $|UM|=2\\cdot|LM|$, and $[AUK]+[HUI]=5$, where $|\\cdot|$ denotes the length of the corresponding segme...
[ "aops_c4_high_school_math" ]
[ "cot", "genselect", "tir" ]
{ "cot": 3, "genselect": 3, "tir": 9 }
15
0
0
omr-ws-05db3aaa1ae7883d9c0f16334f2d221af4b0deda18cf51476c3ef8df3cc429cc
Assume that positive numbers \(a, b, c, x, y, z\) satisfy \(cy + bz = a\), \(az + cx = b\), and \(bx + ay = c\). Find the minimum value of the function \[ f(x, y, z) = \frac{x^2}{x+1} + \frac{y^2}{y+1} + \frac{z^2}{z+1}. \]
[ "\\(\\frac{1}{2}\\)" ]
[ "Assume that positive numbers \\(a, b, c, x, y, z\\) satisfy \\(cy + bz = a\\), \\(az + cx = b\\), and \\(bx + ay = c\\). Find the minimum value of the function \\[ f(x, y, z) = \\frac{x^2}{x+1} + \\frac{y^2}{y+1} + \\frac{z^2}{z+1}. \\]" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 23 }
39
0
0
omr-ws-3b08bbf3e8f0f9232a42715f31fc806d91808deed249d6a4af640b6f2051477e
Assume that random variables \( X_{n} \) converge in distribution to random variable \( X \) and \( \sup_{n}\mathbb{E}|X_{n}|^{2}<\infty \). Let \( p \in (0,2) \). If \( \mathbb{E}|X|^{p} = 5 \), find the limit \( \lim_{n \rightarrow \infty} \mathbb{E}|X_{n}|^{p} \).
[ "5" ]
[ "Assume that random variables \\( X_{n} \\) converge in distribution to random variable \\( X \\) and \\( \\sup_{n}\\mathbb{E}|X_{n}|^{2}<\\infty \\). Let \\( p \\in (0,2) \\). If \\( \\mathbb{E}|X|^{p} = 5 \\), find the limit \\( \\lim_{n \\rightarrow \\infty} \\mathbb{E}|X_{n}|^{p} \\)." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-0c70bd27cee48f33454ed3dc1ba06f4592724a792114deca62f3eb966ec4cda5
Assume that the $A$-mixtilinear excircle touches $AB$, $AC$, and $\odot(ABC)$ at $D$, $E$, and $T$, respectively. Let $AT \cap \odot(TDE) = S$, $\odot(SBC) \cap \odot(TDE) = M$, and $\odot(MBD) \cap \odot(MCE) = P$. The symmetric point of $P$ about $T$ is $Q$. If $I_A$ is the $A$-excenter of $\triangle ABC$, calculate ...
[ "1" ]
[ "Assume that the $A$-mixtilinear excircle touches $AB$, $AC$, and $\\odot(ABC)$ at $D$, $E$, and $T$, respectively. Let $AT \\cap \\odot(TDE) = S$, $\\odot(SBC) \\cap \\odot(TDE) = M$, and $\\odot(MBD) \\cap \\odot(MCE) = P$. The symmetric point of $P$ about $T$ is $Q$. If $I_A$ is the $A$-excenter of $\\triangle A...
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-f458a07fe4c2ee61a4f83b7b4a4e0c250f84d082c2a587d510e7448137e07653
Assume that the Earth is a perfect sphere. A point \( P \) on its surface has the property that starting from \( P \), traveling 1 mile south, 1 mile west, and finally 1 mile north returns you to the same point \( P \). Given that \( P \) is not the north pole, find the locus of \( P \).
[ "The locus of \\( P \\) is an infinite number of circles, each 1 mile north of a circle centered above the South Pole with a circumference of \\( \\frac{1}{n} \\) miles, for all positive integers \\( n \\)." ]
[ "Assume that the Earth is a perfect sphere. A point \\( P \\) on its surface has the property that starting from \\( P \\), traveling 1 mile south, 1 mile west, and finally 1 mile north returns you to the same point \\( P \\). Given that \\( P \\) is not the north pole, find the locus of \\( P \\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect", "tir" ]
{ "cot": 15, "genselect": 8, "tir": 23 }
46
0
0
omr-ws-3e3aa3853b3a1930b5bdc60f1c1aa270db0ef8b7c08919b50ec4a57004df18de
Assume that the calculator approximates every number \( b \in [-2, 2] \) by a number \( \overline{b} \) having \( p \) decimal digits after the decimal point. Perform the following sequence of operations on the calculator: 1. Set \( a = 0.72 \). 2. Calculate \( \delta(a) = \overline{f(a)} - a \). 3. If \( |\delta(a)| >...
[ "\\epsilon" ]
[ "Assume that the calculator approximates every number \\( b \\in [-2, 2] \\) by a number \\( \\overline{b} \\) having \\( p \\) decimal digits after the decimal point. Perform the following sequence of operations on the calculator:\n1. Set \\( a = 0.72 \\).\n2. Calculate \\( \\delta(a) = \\overline{f(a)} - a \\).\n...
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 7 }
7
0
0
omr-ws-fa5a3b3b9d45572d8987c338164a28a98b898eb3f9d7dce1ea61e0400ae3bfbf
Assume that the function $f$ is defined for all $x \in \mathbb{R}$ and has a continuous derivative. Given $f(0) = 0$ and $f'(x) \in (0,1)$ for all $x \in \mathbb{R}$, calculate the value of $k$ such that the inequality \[ \left\{\int_0^1 f(x) \, dx\right\}^2 = k \int_0^1 \left\{f(x)\right\}^3 \, dx \] holds for the fun...
[ "1" ]
[ "Assume that the function $f$ is defined for all $x \\in \\mathbb{R}$ and has a continuous derivative. Given $f(0) = 0$ and $f'(x) \\in (0,1)$ for all $x \\in \\mathbb{R}$, calculate the value of $k$ such that the inequality\n\\[\n\\left\\{\\int_0^1 f(x) \\, dx\\right\\}^2 = k \\int_0^1 \\left\\{f(x)\\right\\}^3 \\...
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-b5b49bd967bd3161ac194a44e4c4e12dc5b39bf550a2015576c0a9c5ed8f7035
Assume that the function \( f \) is defined on \( (-\infty, +\infty) \), measurable, and satisfies the condition \( \int_{-\infty}^{+\infty} |f(x)|^2 \, dx < +\infty \). Let \( g(\alpha) = \alpha^2 \mu\{x \in \mathbb{R} : |f(x)| > \alpha\} \). Find \( \lim_{\alpha \to +\infty} g(\alpha) \).
[ "0" ]
[ "Assume that the function \\( f \\) is defined on \\( (-\\infty, +\\infty) \\), measurable, and satisfies the condition \\( \\int_{-\\infty}^{+\\infty} |f(x)|^2 \\, dx < +\\infty \\). Let \\( g(\\alpha) = \\alpha^2 \\mu\\{x \\in \\mathbb{R} : |f(x)| > \\alpha\\} \\). Find \\( \\lim_{\\alpha \\to +\\infty} g(\\alpha...
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-80b2314619b23959d0a36b3c7cd84c074a04c913cfaf8c7b8e304324440adfba
Assume that the function \( f(x) \) has the property that for every positive number \( c \), there exists a polynomial \( P_c(x) \in \mathbb{R}[x] \) such that \( |f(x) - P_c(x)| \leq cx^{1998} \) for all \( x \in \mathbb{R} \). Determine the degree of the polynomial \( f(x) \).
[ "1998" ]
[ "Assume that the function \\( f(x) \\) has the property that for every positive number \\( c \\), there exists a polynomial \\( P_c(x) \\in \\mathbb{R}[x] \\) such that \\( |f(x) - P_c(x)| \\leq cx^{1998} \\) for all \\( x \\in \\mathbb{R} \\). Determine the degree of the polynomial \\( f(x) \\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-f9e3ce2d32b52a529ce6fef21ee4b970038135c67a65e27477a92fc3436e1019
Assume that the heights of 18-year-old males are normally distributed with a mean of 69 inches and a standard deviation of 6 inches. a) What percentage of 18-year-old males are between 69 and 75 inches tall? b) If 1000 18-year-old males are selected at random, how many will be less than 72 inches tall?
[ "34.13% for part (a) and 692 for part (b)." ]
[ "Assume that the heights of 18-year-old males are normally distributed with a mean of 69 inches and a standard deviation of 6 inches.\na) What percentage of 18-year-old males are between 69 and 75 inches tall?\nb) If 1000 18-year-old males are selected at random, how many will be less than 72 inches tall?" ]
[ "aops_c4_high_school_math" ]
[ "tir" ]
{ "tir": 17 }
17
0
0
omr-ws-b9d4088e50ed2c7400a72fdae89747ea93eba4eea753fe1bd10213b3a5a2d42b
Assume that the infinite series $\sum_{n=0}^{\infty} a_n$ converges and that $|b_n - 2| \leq a_n^2$ for all $n \in \mathbb{N}$. Let $L$ be the limit of the sequence $(b_n)$. Calculate the value of $L$.
[ "2" ]
[ "Assume that the infinite series $\\sum_{n=0}^{\\infty} a_n$ converges and that $|b_n - 2| \\leq a_n^2$ for all $n \\in \\mathbb{N}$. Let $L$ be the limit of the sequence $(b_n)$. Calculate the value of $L$." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-4671d6f739c0157df4633867e740144e51d35953b241a0e61fb4bf67ee923af2
Assume that the length of time \( T \) it takes to do a major construction project varies inversely with the 0.7 power of the number of workers \( W \). If 100 workers can construct an office building in 250 days, write the particular equation expressing \( T \) in terms of \( W \), and use it to predict the number of ...
[ "141" ]
[ "Assume that the length of time \\( T \\) it takes to do a major construction project varies inversely with the 0.7 power of the number of workers \\( W \\). If 100 workers can construct an office building in 250 days, write the particular equation expressing \\( T \\) in terms of \\( W \\), and use it to predict t...
[ "aops_c4_high_school_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-06422e8e7c45b1b64c4ac74c04f1e06c18a4c9f26d8d9accc2d330f685443ec0
Assume that the probability that a man has at least one son is 0.8. Form a Markov chain with four states: professional, skilled laborer, unskilled laborer, and a fourth state representing families whose male line has died out. The transition probabilities for having a son are the same as in Problem 1. If there is no so...
[ "\\(\\frac{6}{25}\\) or 30%" ]
[ "Assume that the probability that a man has at least one son is 0.8. Form a Markov chain with four states: professional, skilled laborer, unskilled laborer, and a fourth state representing families whose male line has died out. The transition probabilities for having a son are the same as in Problem 1. If there is ...
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-eba3937e596c2dc914fe6660f78c087b42e35ae7b6c85e26742a7d96c88ab230
Assume that the rate of change in the number of miles $s$ of road cleared per hour by a snowplow is inversely proportional to the height $h$ of the snow. Find the particular solution if $s = 25$ miles when $h = 2$ inches and $s = 12$ miles when $h = 10$ inches.
[ "\\( s = 30.6 - 8.07 \\ln h \\)" ]
[ "Assume that the rate of change in the number of miles $s$ of road cleared per hour by a snowplow is inversely proportional to the height $h$ of the snow. Find the particular solution if $s = 25$ miles when $h = 2$ inches and $s = 12$ miles when $h = 10$ inches." ]
[ "aops_c7_college_math" ]
[ "tir" ]
{ "tir": 2 }
2
0
0
omr-ws-4266ca00d602b95866b5c80e030a0e788b0a9e6f2071296ae9bcd686ef3df920
Assume that the rate of change in the number of miles $s$ of road cleared per hour by a snowplow is inversely proportional to the height $h$ of the snow. Write and solve the differential equation to find $s$ as a function of $h$.
[ "\\( S = 30.6 - \\frac{13}{\\ln 5} \\ln h \\)" ]
[ "Assume that the rate of change in the number of miles $s$ of road cleared per hour by a snowplow is inversely proportional to the height $h$ of the snow. Write and solve the differential equation to find $s$ as a function of $h$." ]
[ "aops_c7_college_math" ]
[ "tir" ]
{ "tir": 3 }
3
0
0
omr-ws-66f39cba23b6f17b45fec96cc13ca917fc39040233b5e196afa1d5c29d381104
Assume that the sequence $1, 3, 9, 27, \ldots$ is given by a minimal degree polynomial $P$ such that $P(1) = 1$, $P(2) = 3$, $P(3) = 9$, and $P(4) = 27$. What are the next two numbers in the pattern, i.e., $P(5)$ and $P(6)$?
[ "131" ]
[ "Assume that the sequence $1, 3, 9, 27, \\ldots$ is given by a minimal degree polynomial $P$ such that $P(1) = 1$, $P(2) = 3$, $P(3) = 9$, and $P(4) = 27$. What are the next two numbers in the pattern, i.e., $P(5)$ and $P(6)$?" ]
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-9c9b2e90acac64f06d433c6c17d3bd40d5cb5b5919b7c612950e1c0c6584ce48
Assume that the sequence \( \{a_n\} \) satisfies \( a_1 = 0.72 \) and \( a_{n+1} = f(a_n) \) for \( n \in \mathbb{N} \). Find the smallest \( n_0 \in \mathbb{N} \) such that for every \( n \ge n_0 \) we have \( |a_n - c| < 10^{-6} \).
[ "21" ]
[ "Assume that the sequence \\( \\{a_n\\} \\) satisfies \\( a_1 = 0.72 \\) and \\( a_{n+1} = f(a_n) \\) for \\( n \\in \\mathbb{N} \\). Find the smallest \\( n_0 \\in \\mathbb{N} \\) such that for every \\( n \\ge n_0 \\) we have \\( |a_n - c| < 10^{-6} \\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 11, "genselect": 5 }
16
0
0
omr-ws-afea40e9c1d8fc62d6420f4217911c777cb341f1cb268b15e11c46d47fdf3282
Assume that the series \( \sum_{n=1}^{\infty} a_n \) is convergent and \( a_n > 0 \). Find the smallest possible value of \( b_{100} \) where \( b_1 \leq b_2 \leq \ldots \leq b_n \leq \ldots \) is a sequence such that \( \lim_{n \to \infty} b_n = \infty \) and the series \( \sum_{n=1}^{\infty} a_n b_n \) is convergent,...
[ "0" ]
[ "Assume that the series \\( \\sum_{n=1}^{\\infty} a_n \\) is convergent and \\( a_n > 0 \\). Find the smallest possible value of \\( b_{100} \\) where \\( b_1 \\leq b_2 \\leq \\ldots \\leq b_n \\leq \\ldots \\) is a sequence such that \\( \\lim_{n \\to \\infty} b_n = \\infty \\) and the series \\( \\sum_{n=1}^{\\in...
[ "aops_c7_college_math" ]
[ "cot", "genselect" ]
{ "cot": 5, "genselect": 8 }
13
0
0
omr-ws-9c8a61fed18f3a9acca475d36e16c1238c8e12603bc8ea81eee7bffba7af47f3
Assume that the ten variables in the expression $(ab + cd)(pqr + stu)$ represent the ten integers from 1 to 10, in some order. What is the greatest possible odd value of the expression?
[ "35145" ]
[ "Assume that the ten variables in the expression $(ab + cd)(pqr + stu)$ represent the ten integers from 1 to 10, in some order. What is the greatest possible odd value of the expression?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "genselect", "tir" ]
{ "cot": 11, "genselect": 8, "tir": 12 }
31
0
0
omr-ws-18895599dc12ddc18ffb6eab7a7c2d1913af4d484b7064b8a565827ce244e517
Assume that the transformation $t \to U_{t} \in L(\mathbb{R}^3,\mathbb{R}^3)$ is of class $C^1$ and $\forall t, U_{t}^{-1}=U_{t}^\mathbb{T}$. For a given $t$, let $\omega_{t} \in \mathbb{R}^3$ be such that $\forall v \in \mathbb{R}^3, (U_{t})'U_{t}v = \omega_{t} \times v$. Calculate the value of $\omega_{t} \cdot \omeg...
[ "4" ]
[ "Assume that the transformation $t \\to U_{t} \\in L(\\mathbb{R}^3,\\mathbb{R}^3)$ is of class $C^1$ and $\\forall t, U_{t}^{-1}=U_{t}^\\mathbb{T}$. For a given $t$, let $\\omega_{t} \\in \\mathbb{R}^3$ be such that $\\forall v \\in \\mathbb{R}^3, (U_{t})'U_{t}v = \\omega_{t} \\times v$. Calculate the value of $\\o...
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-167de0e17941c2992beb39f0d18fbd89f99693a33db1415794e6fe091523b97f
Assume that the zeroes of the polynomial \( P(x) = \left( \sum_{i=0}^{2n-1} a_i x^i \right) + x^{2n} \) are positive integers and that \( \sum_{i=0}^{n-1} a_{2i} = -\sum_{i=1}^n a_{2i-1} \). Determine the zeroes of \( P(x) \).
[ "2 (with multiplicity \\( 2n \\))" ]
[ "Assume that the zeroes of the polynomial \\( P(x) = \\left( \\sum_{i=0}^{2n-1} a_i x^i \\right) + x^{2n} \\) are positive integers and that \\( \\sum_{i=0}^{n-1} a_{2i} = -\\sum_{i=1}^n a_{2i-1} \\). Determine the zeroes of \\( P(x) \\)." ]
[ "aops_c7_college_math" ]
[ "tir" ]
{ "tir": 13 }
13
0
0
omr-ws-5886c9e8c2f9a791d0c55b659c839d199de76e62fb6c65b10d79ff956184147b
Assume that there exists a perfect power of \(a\) that is congruent to \(-1\) modulo \(m\), and let \(s\) be the least such integer. Given that \(ord_m(a) = d\), find the value of \(d\) in terms of \(s\) and verify that \(a^{2s-d} \equiv -1 \pmod{m}\) does not violate the minimality assumption on \(s\). Express your an...
[ "14" ]
[ "Assume that there exists a perfect power of \\(a\\) that is congruent to \\(-1\\) modulo \\(m\\), and let \\(s\\) be the least such integer. Given that \\(ord_m(a) = d\\), find the value of \\(d\\) in terms of \\(s\\) and verify that \\(a^{2s-d} \\equiv -1 \\pmod{m}\\) does not violate the minimality assumption on...
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-9f07fca774cda5ba1078a5901fac501c64e4088f321fbb5bd29730dbd1a2341a
Assume that two circles $(O_1)$ and $(O_2)$ intersect at points $A$ and $B$. A line through $B$ intersects $(O_1)$ at $C$ and $(O_2)$ at $D$. Let $M$ be the midpoint of $CD$. Line $AM$ intersects $(O_1)$ at a second point $K$ and $(O_2)$ at a second point $P$. A line $d$ perpendicular to $O_1M$ at $M$ intersects $AC$ a...
[ "\\dfrac{\\sqrt{17}}{6}" ]
[ "Assume that two circles $(O_1)$ and $(O_2)$ intersect at points $A$ and $B$. A line through $B$ intersects $(O_1)$ at $C$ and $(O_2)$ at $D$. Let $M$ be the midpoint of $CD$. Line $AM$ intersects $(O_1)$ at a second point $K$ and $(O_2)$ at a second point $P$. A line $d$ perpendicular to $O_1M$ at $M$ intersects $...
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 3 }
3
0
0
omr-ws-a47d1e0452d3993e6146a5fc1f80c6b489db0c5b8265981f3f5bbaf43f732cab
Assume that two circles $(O_1)$ and $(O_2)$ intersect at points $A$ and $B$. A line through $B$ intersects $(O_1)$ at $C$ and $(O_2)$ at $D$. Let $M$ be the midpoint of $CD$. Line $AM$ intersects $(O_1)$ at a second point $K$ and $(O_2)$ at a second point $P$. A line $d$ perpendicular to $O_1M$ at $M$ intersects $AC$ a...
[ "\\dfrac{2}{7}" ]
[ "Assume that two circles $(O_1)$ and $(O_2)$ intersect at points $A$ and $B$. A line through $B$ intersects $(O_1)$ at $C$ and $(O_2)$ at $D$. Let $M$ be the midpoint of $CD$. Line $AM$ intersects $(O_1)$ at a second point $K$ and $(O_2)$ at a second point $P$. A line $d$ perpendicular to $O_1M$ at $M$ intersects $...
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-516fa087df97f3a74465b8cfef102006144d885d1c046d58c1597c2369ac84ca
Assume that two functions \( f(x) \) and \( g(x) \) are defined on the interval \([0, 2]\), where \( f(x) \) is continuously differentiable and \( g(x) \) is continuously differentiable in the second order and convex. They satisfy the following conditions: 1. \( 0 \leq f(x) \leq g(x) \), \( f(0) = g(0) = f(2) = g(2) \)...
[ "\\dfrac{1}{4}" ]
[ "Assume that two functions \\( f(x) \\) and \\( g(x) \\) are defined on the interval \\([0, 2]\\), where \\( f(x) \\) is continuously differentiable and \\( g(x) \\) is continuously differentiable in the second order and convex. They satisfy the following conditions:\n1. \\( 0 \\leq f(x) \\leq g(x) \\), \\( f(0) = ...
[ "aops_c7_college_math" ]
[ "cot", "genselect" ]
{ "cot": 7, "genselect": 8 }
15
0
0
omr-ws-8f435b4f1cdb27786b019b895bfc41559a896ba94e182ccb9833ff86e9931f82
Assume that two parallelograms P and Q have equal areas with sides a, b and c, d respectively, where \( c \leq a \leq b \leq d \), and a segment of length d can be placed inside P. If P and Q can be partitioned into four pairwise congruent parts, find the ratio of the area of one of these parts to the area of parallelo...
[ "\\dfrac{1}{4}" ]
[ "Assume that two parallelograms P and Q have equal areas with sides a, b and c, d respectively, where \\( c \\leq a \\leq b \\leq d \\), and a segment of length d can be placed inside P. If P and Q can be partitioned into four pairwise congruent parts, find the ratio of the area of one of these parts to the area of...
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-2cad35754b4bd117d05c0081f6d9766fcd792f063e3ed6b025c41a6fc3ccbbca
Assume the $n$ sets $A_1, A_2, \ldots, A_n$ are a partition of the set $A=\{1,2,\ldots,29\}$, and the sum of any elements in $A_i$ (for $i=1,2,\ldots,n$) is not equal to $30$. Find the smallest possible value of $n$.
[ "3" ]
[ "Assume the $n$ sets $A_1, A_2, \\ldots, A_n$ are a partition of the set $A=\\{1,2,\\ldots,29\\}$, and the sum of any elements in $A_i$ (for $i=1,2,\\ldots,n$) is not equal to $30$. Find the smallest possible value of $n$." ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-e6c2d1c216732273bf66347dea46faef718c4be9da52595c74bd2e50c90d50c0
Assume the Earth is a perfect sphere with a radius of 4000 miles. Starting at a latitude of 30 degrees North, how many miles will you travel if you move east until you return to your original position?
[ "\\( 4000\\sqrt{3}\\pi \\)" ]
[ "Assume the Earth is a perfect sphere with a radius of 4000 miles. Starting at a latitude of 30 degrees North, how many miles will you travel if you move east until you return to your original position?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 15, "tir": 19 }
34
0
0
omr-ws-ac354e6e7c0793c7032cdd28acbaf3a1eb5349ec5ab7062625efd0158e862ef4
Assume the constant of integration is $0$. Find a set of necessary conditions for $\int^{d}_{c}{\frac{\ln{ax}}{x^{b}}}\,dx<0$ where $a,b,c,d\in\Re$ and $d>c$.
[ " \n\\begin{cases} \na > 0,\\ c > 0,\\ ad \\leq 1,\\ \\text{and}\\ (b \\neq 1\\ \\text{or}\\ ad < 1) \\\\\n\\text{or} \\\\\na < 0,\\ d < 0,\\ ac \\leq 1,\\ \\text{and}\\ (b \\neq 1\\ \\text{or}\\ ac > 1)\n\\end{cases} \n" ]
[ "Assume the constant of integration is $0$. Find a set of necessary conditions for $\\int^{d}_{c}{\\frac{\\ln{ax}}{x^{b}}}\\,dx<0$ where $a,b,c,d\\in\\Re$ and $d>c$." ]
[ "aops_c7_college_math" ]
[ "additional_problems", "genselect" ]
{ "additional_problems": 1, "genselect": 4 }
5
0
0
omr-ws-37aba64c4882a3a156d35a7049b0f11339ba9f6def9c3096d179902585b7016b
Assume the game begins with 10 players, each of whom independently and randomly choose between rock, paper, and scissors with equal probability. Let \( R \), \( P \), and \( S \) count the number of players who play rock, paper, and scissors, respectively. How would you compute the joint probability mass function (PMF)...
[ "\\( P(R = r, P = p, S = s) = \\frac{10!}{r! p! s!} \\left(\\frac{1}{3}\\right)^{10} \\) for \\( r + p + s = 10 \\)." ]
[ "Assume the game begins with 10 players, each of whom independently and randomly choose between rock, paper, and scissors with equal probability. Let \\( R \\), \\( P \\), and \\( S \\) count the number of players who play rock, paper, and scissors, respectively. How would you compute the joint probability mass fun...
[ "aops_c7_college_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 20 }
36
0
0
omr-ws-9469a677ed7bd3b30f8bc395e2337e9b08cb4b788723cd1a8d0927c8e66f639e
Assume the highest ranking prospect is the $(m + 1)th$ person to be interviewed. What is the probability that the highest rank candidate among the first $m$ candidates is one of the first $k$ candidates who were rejected?
[ "\\dfrac{k}{m}" ]
[ "Assume the highest ranking prospect is the $(m + 1)th$ person to be interviewed. What is the probability that the highest rank candidate among the first $m$ candidates is one of the first $k$ candidates who were rejected?" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 15 }
15
0
0
omr-ws-e3189b3441a2936b8b82da476400b5ca26e31afa941285207cf793416ce2e860
Assume the highest ranking prospect is the (m+1)th person to be interviewed. What is the probability that the highest rank candidate among the first m candidates is one of the first k candidates who were rejected?
[ "\\(\\frac{k}{m}\\)" ]
[ "Assume the highest ranking prospect is the (m+1)th person to be interviewed. What is the probability that the highest rank candidate among the first m candidates is one of the first k candidates who were rejected?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 15, "tir": 29 }
44
0
0
omr-ws-5f153d270200d6d8ca4743cf2c188f5fc8d01925f422643e98c59fc09bb3996c
Assume the prior \(\theta_i \sim N(0, A)\) independently for \( i = 1, \ldots, k \) and a given \( A > 0 \). Provide an estimator \(\hat{A}\) of \( A \) and derive the empirical Bayes estimator of \(\tau\), denoted as \(\hat{\tau}_B\), where \(\hat{\tau}_B = E(\tau \mid X_1, \ldots, X_k, \hat{A})\).
[ "\\hat{\\tau}_B = \\frac{\\hat{A}}{\\hat{A} + 1} X_i" ]
[ "Assume the prior \\(\\theta_i \\sim N(0, A)\\) independently for \\( i = 1, \\ldots, k \\) and a given \\( A > 0 \\). Provide an estimator \\(\\hat{A}\\) of \\( A \\) and derive the empirical Bayes estimator of \\(\\tau\\), denoted as \\(\\hat{\\tau}_B\\), where \\(\\hat{\\tau}_B = E(\\tau \\mid X_1, \\ldots, X_k,...
[ "aops_c7_college_math" ]
[ "cot", "genselect" ]
{ "cot": 8, "genselect": 3 }
11
0
0
omr-ws-be5827393c5a252e5d7ffb635f5a7aa5bdbe6bb6a18949391b5a2a27d9af3f57
Assume the property Q is possessed by at least one of \(a_1, b_1, c_1\), at least one of \(a_2, b_2, c_2\), at least one of \(a_3, b_3, c_3\), at least one of \(a_4, b_4, c_4\), and at least one of \(a_5, b_5, c_5\). Find the largest value of \(m\) for which it can be said that at least \(m\) of the \(a\)'s, \(b\)'s, o...
[ "5" ]
[ "Assume the property Q is possessed by at least one of \\(a_1, b_1, c_1\\), at least one of \\(a_2, b_2, c_2\\), at least one of \\(a_3, b_3, c_3\\), at least one of \\(a_4, b_4, c_4\\), and at least one of \\(a_5, b_5, c_5\\). Find the largest value of \\(m\\) for which it can be said that at least \\(m\\) of the ...
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 12 }
12
0
0
omr-ws-5391d47426fa429a68c25b510bf6adaa4b5923f13cc3877a363c44e3891ea744
Assume the speed of sound is $343$ m/s. When Anastasia and Bananastasia both yell at the same time, you hear Anastasia’s yell $5$ seconds before Bananastasia’s yell. If Bananastasia yells first, and then Anastasia yells when she hears Bananastasia yell, you hear Anastasia’s yell $5$ seconds after Bananastasia’s yell. W...
[ "3430 meters" ]
[ "Assume the speed of sound is $343$ m/s. When Anastasia and Bananastasia both yell at the same time, you hear Anastasia’s yell $5$ seconds before Bananastasia’s yell. If Bananastasia yells first, and then Anastasia yells when she hears Bananastasia yell, you hear Anastasia’s yell $5$ seconds after Bananastasia’s ye...
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 4 }
20
0
0
omr-ws-7271dd159af965c2ce59b194b6837d90f7eb2a844ac5b6b155619a49c718f01f
Assume the weight (in ounces) of a major league baseball is a random variable, and a carton contains 144 baseballs. The weights of individual baseballs are independent and normally distributed with mean $\mu=5$ and standard deviation $\sigma = 2/5$. Let $T$ represent the total weight of all baseballs in the carton. Fin...
[ "0.8508" ]
[ "Assume the weight (in ounces) of a major league baseball is a random variable, and a carton contains 144 baseballs. The weights of individual baseballs are independent and normally distributed with mean $\\mu=5$ and standard deviation $\\sigma = 2/5$. Let $T$ represent the total weight of all baseballs in the cart...
[ "aops_c7_college_math" ]
[ "cot", "genselect" ]
{ "cot": 7, "genselect": 1 }
8
0
0
omr-ws-5baea4b337a9dd66e2f2f96edf162b9c7991132de97037c95b66207b826ef5da
Assume there are 18 board members: 13 females and 5 males, including Carl. There are 4 tasks to be assigned, and assigning the same people different tasks constitutes a different assignment. Find the probability that Carl and at least one female are given tasks.
[ "\\(\\frac{15}{68}\\)" ]
[ "Assume there are 18 board members: 13 females and 5 males, including Carl. There are 4 tasks to be assigned, and assigning the same people different tasks constitutes a different assignment. Find the probability that Carl and at least one female are given tasks." ]
[ "aops_c4_high_school_math" ]
[ "tir" ]
{ "tir": 1 }
1
0
0
omr-ws-ba6e89ed6cca28a32be252c72dacea5d969eb0dc4ad6bcf4acb38aa33ea22082
Assume there are finitely many primes \( p_1, p_2, \ldots, p_k \). Let \( n = p_1 \cdot p_2 \cdot \ldots \cdot p_k \). For any arbitrary number \( m \) such that \( 1 < m < n \), what can we say about \(\gcd(m, n)\)?
[ "\\(\\gcd(m, n) > 1\\)" ]
[ "Assume there are finitely many primes \\( p_1, p_2, \\ldots, p_k \\). Let \\( n = p_1 \\cdot p_2 \\cdot \\ldots \\cdot p_k \\). For any arbitrary number \\( m \\) such that \\( 1 < m < n \\), what can we say about \\(\\gcd(m, n)\\)?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 22 }
38
0
0
omr-ws-07d2a01e29e9d06423ca582f304e33627427b5653f2505f15d85b75f147973a9
Assume there exists a language with 25 characters, and words consist of 17 characters each. A ring made of paper has $5^{18}$ characters printed around it. For any word $\omega$, let $\mathrm{count}(\omega)$ be the maximum number of paper slices that can be obtained containing exactly the word $\omega$ by cutting the r...
[ "24 \\times 5^{16}" ]
[ "Assume there exists a language with 25 characters, and words consist of 17 characters each. A ring made of paper has $5^{18}$ characters printed around it. For any word $\\omega$, let $\\mathrm{count}(\\omega)$ be the maximum number of paper slices that can be obtained containing exactly the word $\\omega$ by cutt...
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 9, "genselect": 8 }
17
0
0
omr-ws-885d3fbce9781e113ab9e81aefa1b4bcf58ca14155ed8e999f0462993bb4cabe
Assume there exists a permutation $\{a_1, a_2, a_3, \ldots, a_n\}$ of $\{1, 2, \ldots, n\}$ such that $\{a_1+1, a_2+2, \ldots, a_n+n\}$ and $\{a_1-1, a_2-2, \ldots, a_n-n\}$ are complete residue systems modulo $n$. Find the sum of all possible values of $n$ less than $100$ for which this condition holds.
[ "1633" ]
[ "Assume there exists a permutation $\\{a_1, a_2, a_3, \\ldots, a_n\\}$ of $\\{1, 2, \\ldots, n\\}$ such that $\\{a_1+1, a_2+2, \\ldots, a_n+n\\}$ and $\\{a_1-1, a_2-2, \\ldots, a_n-n\\}$ are complete residue systems modulo $n$. Find the sum of all possible values of $n$ less than $100$ for which this condition hold...
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 4 }
4
0
0
omr-ws-00436f7a4c69a8849edd920a43048a692d84bd4c83e54bf5d4d67b38eb76a0c7
Assume two non-intersecting circles \(O_1\) and \(O_2\) are internally tangent to a larger circle \(O\) at points \(A\) and \(B\) respectively. Two internal common tangents of circles \(O_1\) and \(O_2\) intersect the larger circle \(O\) at points \(C, D, E,\) and \(F\) respectively. Lines \(CE\) and \(FD\) lie on oppo...
[ "\\frac{(a_x b_y - a_y b_x)(c_x - e_x) - (c_x e_y - c_y e_x)(a_x - b_x)}{(a_x - b_x)(c_y - e_y) - (a_y - b_y)(c_x - e_x)}" ]
[ "Assume two non-intersecting circles \\(O_1\\) and \\(O_2\\) are internally tangent to a larger circle \\(O\\) at points \\(A\\) and \\(B\\) respectively. Two internal common tangents of circles \\(O_1\\) and \\(O_2\\) intersect the larger circle \\(O\\) at points \\(C, D, E,\\) and \\(F\\) respectively. Lines \\(C...
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems", "genselect" ]
{ "additional_problems": 1, "genselect": 4 }
5
0
0
omr-ws-36a7e1b90b90704e8f3069fd520857d4d5b69f0d00c30d950522c62888a7b943
Assume two random subsets \( A \) and \( B \) of the set \(\{1,2,3,4,5,6\}\). Find the probability that \( B \) is a subset of \( A \) or \( A \) and \( B \) are disjoint.
[ "\\(\\frac{729}{2^{11}}\\)" ]
[ "Assume two random subsets \\( A \\) and \\( B \\) of the set \\(\\{1,2,3,4,5,6\\}\\). Find the probability that \\( B \\) is a subset of \\( A \\) or \\( A \\) and \\( B \\) are disjoint." ]
[ "aops_c4_high_school_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-8a6e8406f7eb6c41b3971a01941fdceff8e9a58c8faf8690200662599796e54b
Assume we can find positive integers \( R, k, l \) such that for every positive integer \( M \) the number \( Mp^kq^l + R \) is captivating. Let \( D \) be the smallest constant such that every integer \( n \ge D \) is captivating. If \( p = 2 \) and \( q = 3 \), and \( R = 1 \), find the smallest possible value of \( ...
[ "37" ]
[ "Assume we can find positive integers \\( R, k, l \\) such that for every positive integer \\( M \\) the number \\( Mp^kq^l + R \\) is captivating. Let \\( D \\) be the smallest constant such that every integer \\( n \\ge D \\) is captivating. If \\( p = 2 \\) and \\( q = 3 \\), and \\( R = 1 \\), find the smallest...
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 2, "genselect": 5 }
7
0
0
omr-ws-56b496efb95be717669d34980872ea9a647fd8b603f210b96c361395b3c95c52
Assume we have a calendrical system in which leap years happen every four years, no matter what. In a 150-year period, what is the maximum possible number of leap years?
[ "38" ]
[ "Assume we have a calendrical system in which leap years happen every four years, no matter what. In a 150-year period, what is the maximum possible number of leap years?" ]
[ "MATH_training_set" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-53a510bd3a9027810aea15f9db7a29ac51e1c90153d8aae2a30e20e5711d842f
Assume we have a cylinder lying on its side with a diameter of 20 units. If the cylinder is filled to 25% of its volume with gas, at what height on the stick (placed down the middle of the cylinder) should the gas leave?
[ "6" ]
[ "Assume we have a cylinder lying on its side with a diameter of 20 units. If the cylinder is filled to 25% of its volume with gas, at what height on the stick (placed down the middle of the cylinder) should the gas leave?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "genselect" ]
{ "cot": 7, "genselect": 3 }
10
0
0
omr-ws-8ec00ba1e4e66d681cc7d5324f44b77e51f900633979d457493c891042bfd6a8
Assume you have a die where the probability to get "1" is 1/2, and the probability to get 2, 3, 4, 5, or 6 is equal. Let \( X \) be the number of eyes that you get when the die is tossed. a) Find the probability distribution of \( X \). b) Find the expected value \( E(X) \). c) Find the variance \( Var(X) \).
[ "\\( E(X) = 2.5 \\) and \\( Var(X) = 3.25 \\)" ]
[ "Assume you have a die where the probability to get \"1\" is 1/2, and the probability to get 2, 3, 4, 5, or 6 is equal. Let \\( X \\) be the number of eyes that you get when the die is tossed.\na) Find the probability distribution of \\( X \\).\nb) Find the expected value \\( E(X) \\).\nc) Find the variance \\( Var...
[ "aops_c4_high_school_math" ]
[ "tir" ]
{ "tir": 21 }
21
0
0
omr-ws-3fcfa7254aef2ade11e0cf34e3d027ee3e6e1dd70597d90d42d906ab682060e3
Assume you start with 16 dollars. A fair coin is flipped; if it comes up heads, 8 dollars are added to that amount, otherwise half the money is lost. Find the probability that you will have less than 16 dollars after the fourth flip.
[ "\\dfrac{9}{16}" ]
[ "Assume you start with 16 dollars. A fair coin is flipped; if it comes up heads, 8 dollars are added to that amount, otherwise half the money is lost. Find the probability that you will have less than 16 dollars after the fourth flip." ]
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-a676c2d2b51f2102c14012e37a2dc1ba54e74d812ac8d79aa592f6f23fe371de
Assuming $0 < y < 1$, find the maximum value of \[ \int_0^y \sqrt{x^4 + (y - y^2)^2} \, dx \]
[ "\\dfrac{1}{3}" ]
[ "Assuming $0 < y < 1$, find the maximum value of\n\\[ \\int_0^y \\sqrt{x^4 + (y - y^2)^2} \\, dx \\]" ]
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 14 }
14
0
0
omr-ws-8ff27ee9cdf7ac96f1c62f2584a32760b4cfa1e1c9af4f6e65d7c37cf445271d
Assuming 5 people each produce 13,146,337,252,759,428 dollars per year (5 of each denomination of the third Zimbabwe dollar * 73), how many years will it take to distribute an equal amount of money to 101 numbers? How much money will each number have after those years? Note: The denominations of the Third Zimbabwe Doll...
[ "65731686263797140" ]
[ "Assuming 5 people each produce 13,146,337,252,759,428 dollars per year (5 of each denomination of the third Zimbabwe dollar * 73), how many years will it take to distribute an equal amount of money to 101 numbers? How much money will each number have after those years?\n\nNote: The denominations of the Third Zimba...
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 15 }
15
0
0
omr-ws-82467ee78298612ed6195f7f14e487c4fbc9aa1362a8b7d8127e18823a1c958d
Assuming Earth's orbit around the Sun is circular with a mean distance of 9.29 x 10^7 miles and that one revolution takes 365 days, find the linear speed of the Earth in miles per hour.
[ "2292 mph" ]
[ "Assuming Earth's orbit around the Sun is circular with a mean distance of 9.29 x 10^7 miles and that one revolution takes 365 days, find the linear speed of the Earth in miles per hour." ]
[ "aops_c4_high_school_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-ea8e29b9a5ecfca5b3671837dc88f3b0f0f56caa4e8efe0abd2bb9c95dba87a9
Assuming Schanuel's conjecture, let $\alpha$ be an algebraic number such that $i\alpha$ is not a rational number. Calculate the degree of the field extension $\mathbb{Q}(\pi, e^{\alpha \pi})$ over $\mathbb{Q}$.
[ "\\infty" ]
[ "Assuming Schanuel's conjecture, let $\\alpha$ be an algebraic number such that $i\\alpha$ is not a rational number. Calculate the degree of the field extension $\\mathbb{Q}(\\pi, e^{\\alpha \\pi})$ over $\\mathbb{Q}$." ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-a74b66a549afb83e3ebe311fc6bf3a502e1fd5f042143ad39ed5fd744c1ba439
Assuming \( A = \mathbb{Q} \), find all functions \( f \) which satisfy the functional equation \( f(x + y) = f(x) f(y) - f(xy) + 1 \) and \( f(1997) \neq f(1998) \).
[ "\\( f(x) = x + 1 \\)", "f(x) = x + 1" ]
[ "Assuming \\( A = \\mathbb{Q} \\), find all functions \\( f \\) which satisfy the functional equation \\( f(x + y) = f(x) f(y) - f(xy) + 1 \\) and \\( f(1997) \\neq f(1998) \\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "tir" ]
{ "cot": 31, "tir": 8 }
39
0
0
omr-ws-1e6422f476b165f14068e71d693fed6451f4f7589cfcdc911f320ab871b12b81
Assuming \( f(n) = \sqrt{1 + n \sqrt{1 + (n+1) \sqrt{1 + \cdots}}} \) is a polynomial in \( n \), calculate the value of \( f(3) = \sqrt{1 + 3 \sqrt{1 + 4 \sqrt{1 + 5 \sqrt{1 + \cdots}}}} \).
[ "4" ]
[ "Assuming \\( f(n) = \\sqrt{1 + n \\sqrt{1 + (n+1) \\sqrt{1 + \\cdots}}} \\) is a polynomial in \\( n \\), calculate the value of \\( f(3) = \\sqrt{1 + 3 \\sqrt{1 + 4 \\sqrt{1 + 5 \\sqrt{1 + \\cdots}}}} \\)." ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 15, "tir": 3 }
18
0
0
omr-ws-9d916ba0d5b7f3dd2f6022ef14048c4650ea5a3e3df0a4705c2162cab1b50fe6
Assuming \( f(x) \) is twice differentiable, calculate the value of \( \lim_{h \to 0} \frac{f(3+h) + f(3-h) - 2f(3)}{h^2} \) given that \( f''(3) = 5 \).
[ "5" ]
[ "Assuming \\( f(x) \\) is twice differentiable, calculate the value of \\( \\lim_{h \\to 0} \\frac{f(3+h) + f(3-h) - 2f(3)}{h^2} \\) given that \\( f''(3) = 5 \\)." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-3083b1e7945e62007b4ab2139c7565ab82059e65eb1c2b6122466a9e331c8414
Assuming \( u_0 > -1 \), use \( w_n = \frac{1}{u_{n+1}} - \frac{1}{u_n} \) to find an equivalent of the sequence \( (u_n) \).
[ "\\frac{1}{\\sum_{k=0}^{n-1} w_k}" ]
[ "Assuming \\( u_0 > -1 \\), use \\( w_n = \\frac{1}{u_{n+1}} - \\frac{1}{u_n} \\) to find an equivalent of the sequence \\( (u_n) \\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 9, "genselect": 7 }
16
0
0
omr-ws-bddfa3b00410e9fd1d985b2946d0d76e5005c885d30245a43d8421d0d3d4a8ff
Assuming non-zero denominators, the equation $\frac{k}{x-2}+\frac{w}{(x-2)^{2}}+\frac{bx+f}{x^{2}+1}= \frac{3x^{2}+3x+7}{(x-2)^{2}(x^{2}+1)}$ holds for all values of $x$. Find the value of $k+w+b+f$.
[ "5" ]
[ "Assuming non-zero denominators, the equation $\\frac{k}{x-2}+\\frac{w}{(x-2)^{2}}+\\frac{bx+f}{x^{2}+1}= \\frac{3x^{2}+3x+7}{(x-2)^{2}(x^{2}+1)}$ holds for all values of $x$. Find the value of $k+w+b+f$." ]
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-145269ae206dbbb0ff34ba75886d37f031d371538a050956f71b765b3c5595af
Assuming part (a), we can define $$g(s) = f(5^{a_1} + 5^{a_2} + \ldots + 5^{a_k}),$$ where $s = a_1 + a_2 + \ldots + a_k$. Find the least positive integer $p$ for which $$g(s) = g(s + p), \quad \text{for all } s \ge 1,$$ or show that no such $p$ exists.
[ "4" ]
[ "Assuming part (a), we can define\n$$g(s) = f(5^{a_1} + 5^{a_2} + \\ldots + 5^{a_k}),$$\nwhere $s = a_1 + a_2 + \\ldots + a_k$. Find the least positive integer $p$ for which\n$$g(s) = g(s + p), \\quad \\text{for all } s \\ge 1,$$\nor show that no such $p$ exists." ]
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 15 }
15
0
0
omr-ws-2fb3dc280648b8b0686abe5cfed9b5b5c27a5dd4254cb101206febf057b0e355
Assuming real values for $p$, $q$, $r$, and $s$, the equation $$x^4 + px^3 + qx^2 + rx + s$$ has four non-real roots. The sum of two of these roots is $4 + 7i$, and the product of the other two roots is $3 - 4i$. Find $q$.
[ "71" ]
[ "Assuming real values for $p$, $q$, $r$, and $s$, the equation $$x^4 + px^3 + qx^2 + rx + s$$ has four non-real roots. The sum of two of these roots is $4 + 7i$, and the product of the other two roots is $3 - 4i$. Find $q$." ]
[ "aops_c4_high_school_math", "c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 15, "tir": 11 }
26
0
0
omr-ws-a393865f9126d136b90e8bef8c3a736d27f1219cfa333c9a1a3ecf49d3b0d020
Assuming real values for $p, q, r$, and $s$, the equation $$x^4 + px^3 + qx^2 + rx + s$$ has four non-real roots. The sum of two of these roots is $q + 6i$, and the product of the other two roots is $3 - 4i$. Find the smallest value of $q$.
[ "-3" ]
[ "Assuming real values for $p, q, r$, and $s$, the equation $$x^4 + px^3 + qx^2 + rx + s$$ has four non-real roots. The sum of two of these roots is $q + 6i$, and the product of the other two roots is $3 - 4i$. Find the smallest value of $q$." ]
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 2 }
2
0
0
omr-ws-aa7393ed26d069bcae75c2b29f2e3cce2ffdd5b7ef48aab301c6ca4ebae22a52
Assuming that $p^3$ does not divide $2^{p-1}-1$ for large enough $p$, find the density of the set $\{n \mid 2^n-1 \text{ is cubefree}\}$.
[ "0.7" ]
[ "Assuming that $p^3$ does not divide $2^{p-1}-1$ for large enough $p$, find the density of the set $\\{n \\mid 2^n-1 \\text{ is cubefree}\\}$." ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-6e5d5b42e094faf085ae140641d2e5ea852d0b2938d2118ab6b73c3a7212f22e
Assuming that ProtestanT picks an answer for every question, what are the chances that he gets exactly 3 out of the 10 questions right? Express your answer as a common fraction.
[ "\\(\\frac{15}{128}\\)" ]
[ "Assuming that ProtestanT picks an answer for every question, what are the chances that he gets exactly 3 out of the 10 questions right? Express your answer as a common fraction." ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 15, "tir": 10 }
25
0
0
omr-ws-f2f00c1fe2ec20365f644726f47c290993b9d0f79efa04bb37c55e0f93ab76c5
Assuming that \( f(x) \) is continuous in the interval \((0,1)\), calculate the value of \[ \int_{x=0}^{x=1} \int_{y=x}^{y=1} \int_{z=x}^{z=y} f(x)f(y)f(z)\;dz dy dx \] given that \(\int_{0}^{1} f(t)\; dt = 2\).
[ "\\dfrac{4}{3}" ]
[ "Assuming that \\( f(x) \\) is continuous in the interval \\((0,1)\\), calculate the value of\n\\[\n\\int_{x=0}^{x=1} \\int_{y=x}^{y=1} \\int_{z=x}^{z=y} f(x)f(y)f(z)\\;dz dy dx\n\\]\ngiven that \\(\\int_{0}^{1} f(t)\\; dt = 2\\)." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-c23725dc5610f60609b51667fd6cbf13ee62f423e33c5313cce87de3cdd105cc
Assuming that any 5 aircrafts include 3 that are arranged in a straight line, and there are exactly 4 crafts arranged in a straight line, what is the minimum number of planes required?
[ "5" ]
[ "Assuming that any 5 aircrafts include 3 that are arranged in a straight line, and there are exactly 4 crafts arranged in a straight line, what is the minimum number of planes required?" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 10, "genselect": 8 }
18
0
0
omr-ws-1a4b6c4fe2481f1a4c92eb746c309e42239cc8a3dde6f38738249890749a9079
Assuming that each distinct arrangement of the letters in "DISCUSSIONS" is equally likely to occur, what is the probability that a random arrangement of the letters in "DISCUSSIONS" has all the \(S\)’s together?
[ "\\(\\frac{4}{165}\\)" ]
[ "Assuming that each distinct arrangement of the letters in \"DISCUSSIONS\" is equally likely to occur, what is the probability that a random arrangement of the letters in \"DISCUSSIONS\" has all the \\(S\\)’s together?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 19 }
35
0
0
omr-ws-e3d7a31520dbec84219ae826e26f4af627285f5cf8c1a7fff669aaaeae076946
Assuming that every prime has primitive roots, find all primes that have exactly \( k \) primitive roots. (a) \( k = 4 \) (b) \( k = 12 \).
[ "\\( p = 11, 13 \\) for \\( k = 4 \\) and \\( p = 29, 37 \\) for \\( k = 12 \\)." ]
[ "Assuming that every prime has primitive roots, find all primes that have exactly \\( k \\) primitive roots. (a) \\( k = 4 \\) (b) \\( k = 12 \\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "tir" ]
{ "tir": 7 }
7
0
0
omr-ws-007388ce2e8a2b577c3ed1e1c1ffcc15abae10bae4b29f226829af9c2e4602d2
Assuming that for \( n \) odd no 3 diagonals of a regular \( n \)-gon are concurrent, generalize the number of compartments into which the \( n \)-gon is dissected by the diagonals.
[ "\\(\\binom{n}{4} + \\binom{n-1}{2} + 1\\)" ]
[ "Assuming that for \\( n \\) odd no 3 diagonals of a regular \\( n \\)-gon are concurrent, generalize the number of compartments into which the \\( n \\)-gon is dissected by the diagonals." ]
[ "aops_c4_high_school_math" ]
[ "tir" ]
{ "tir": 1 }
1
0
0
omr-ws-b190c6feab4a2d8c88e2cc6b2d4afd08874509b227aa24c4592d825353fbac2d
Assuming that in the multiplication of bacteria by fission (division into two bacteria) the probability of a bacterium dividing during a time interval Δ(t) is equal to aΔ(t) + o(Δt) and is not dependent on the number of previous divisions or on the number of bacteria present, find the probability that if at time 0 ther...
[ "e^{-a t} \\left(1 - e^{-a t}\\right)^{i - 1}" ]
[ "Assuming that in the multiplication of bacteria by fission (division into two bacteria) the probability of a bacterium dividing during a time interval Δ(t) is equal to aΔ(t) + o(Δt) and is not dependent on the number of previous divisions or on the number of bacteria present, find the probability that if at time 0...
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 15 }
15
0
0
omr-ws-5143f844f0de884849640e50ac21b428ff88e0492e98cbbbf1b321e608198907
Assuming that one in \( n \) letters is lost in the mail, find the probability that Superman received Joseph's letter, given that Superman would have answered if he had received it.
[ "\\(\\frac{n-1}{2n-1}\\)" ]
[ "Assuming that one in \\( n \\) letters is lost in the mail, find the probability that Superman received Joseph's letter, given that Superman would have answered if he had received it." ]
[ "aops_c4_high_school_math" ]
[ "cot", "genselect", "tir" ]
{ "cot": 2, "genselect": 6, "tir": 12 }
20
0
0
omr-ws-a6895e5a969b339520dcaee1cbfd1f37c14bf6d0257a9da700266e91f72015b8
Assuming that one in \( n \) letters is lost in the mail, find the probability that Superman received the letter, given that he would have answered if he had received it.
[ "\\(\\frac{n-1}{2n-1}\\)" ]
[ "Assuming that one in \\( n \\) letters is lost in the mail, find the probability that Superman received the letter, given that he would have answered if he had received it." ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 1, "tir": 1 }
2
0
0
omr-ws-e9d5c360f34edd13390e3f5010430a240e071d13676f598c0a2afd2b0e1b7323
Assuming that real numbers $x$ and $y$ satisfy the equation $y\left(1+x^2\right)=x\left(\sqrt{1-4y^2}-1\right)$, find the maximum value of $xy$.
[ "\\(\\frac{\\frac{\\sqrt{2}}{\\sqrt[4]{3}} + \\sqrt{1 + \\frac{2}{\\sqrt{3}}}}{2 + \\frac{2}{\\sqrt{3}}}\\)" ]
[ "Assuming that real numbers $x$ and $y$ satisfy the equation $y\\left(1+x^2\\right)=x\\left(\\sqrt{1-4y^2}-1\\right)$, find the maximum value of $xy$." ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-3af5558daaed0f83af3ae22f9f10a221704bde06a5e02887bc9a10cf7c11eb90
Assuming that the answers to 25 questions are distributed as 5 As, 5 Bs, 5 Cs, 5 Ds, and 5 Es, if you pick five questions at random, what should you guess on them in order to maximize your chance of getting at least two right?
[ "AAAAA" ]
[ "Assuming that the answers to 25 questions are distributed as 5 As, 5 Bs, 5 Cs, 5 Ds, and 5 Es, if you pick five questions at random, what should you guess on them in order to maximize your chance of getting at least two right?" ]
[ "aops_c5_contests_amp_programs" ]
[ "cot", "genselect" ]
{ "cot": 9, "genselect": 2 }
11
0
0
omr-ws-94dec503f599239a362fc0b9f2ccf7a3564a87ac0d4ba2b02ab083f6b307219d
Assuming that the birth of a boy or a girl is equally likely, what is the probability that the three children in a family include at least one boy and one girl? Express your answer as a common fraction.
[ "\\frac{3}{4}" ]
[ "Assuming that the birth of a boy or a girl is equally likely, what is the probability that the three children in a family include at least one boy and one girl? Express your answer as a common fraction." ]
[ "MATH_training_set" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-82df22310410a99003a1a5679d937a31bd4839e23f5672c80a7ce1014eca1ef9
Assuming that the computational cost of adding two integers is one unit, estimate the total computational cost of the recursive function $fibonacci(N)$ and the non-recursive function $fibonacci(N)$ in terms of $N$.
[ "Recursive: $O(\\phi^n)$, Non-recursive: $O(n)$" ]
[ "Assuming that the computational cost of adding two integers is one unit, estimate the total computational cost of the recursive function $fibonacci(N)$ and the non-recursive function $fibonacci(N)$ in terms of $N$." ]
[ "aops_c7_college_math" ]
[ "cot", "tir" ]
{ "cot": 2, "tir": 14 }
16
0
0
omr-ws-952852dd792735c4906b880ec91b3322610743e280e5be9facc5cfbc21ded4aa
Assuming that the quarter earned 10% annual interest for the entire 103 year period, would it be worth more or less than $40,000?
[ "less than $40,000$" ]
[ "Assuming that the quarter earned 10% annual interest for the entire 103 year period, would it be worth more or less than $40,000?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 28 }
44
0
0
omr-ws-3f8caaf429ba11fb912cd8d586e48edce8e5a95dc92d35f043f2d304596ab274
Assuming that the size of the fish population satisfies the logistic equation \( \frac{dP}{dt} = kP(1 - \frac{P}{K}) \), where the initial population \( P(0) = 400 \), the carrying capacity \( K = 8400 \), and the population doubles in the first year, determine the constant \( k \) and solve the equation to find an exp...
[ "P(t) = \\frac{8400}{1 + 20 \\left( \\frac{19}{40} \\right)^t}" ]
[ "Assuming that the size of the fish population satisfies the logistic equation \\( \\frac{dP}{dt} = kP(1 - \\frac{P}{K}) \\), where the initial population \\( P(0) = 400 \\), the carrying capacity \\( K = 8400 \\), and the population doubles in the first year, determine the constant \\( k \\) and solve the equation...
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 15 }
15
0
0
omr-ws-0ec25d482ad2864e85f05044a23a9ca43303500ddae79d2a947c8f809a80c5b1
Assuming that the top of the can is 3 times thicker than the sides, find the dimensions (radius \( r \), height \( h \)) that will minimize the surface area of this can. Imagine the top has 3 layers to it.
[ "h = 4r" ]
[ "Assuming that the top of the can is 3 times thicker than the sides, find the dimensions (radius \\( r \\), height \\( h \\)) that will minimize the surface area of this can. Imagine the top has 3 layers to it." ]
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-d01126db07044c8a74c4074d90a84933e890ef9ed5fc63ec4016fe1f2bc5f082
Assuming that the top of the can is 3 times thicker than the sides, find the dimensions (radius \( r \), height \( h \)) that will minimize the surface area of this can. The top has 3 layers.
[ "h = 4r" ]
[ "Assuming that the top of the can is 3 times thicker than the sides, find the dimensions (radius \\( r \\), height \\( h \\)) that will minimize the surface area of this can. The top has 3 layers." ]
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-ae58a9ca88fe68b80d5c8ce58972d391c2f41e30269c50026ceb27cc08a03646
Assuming the 14 goals scored in a match between Germany and Brazil could be scored in any order, what is the probability that the score was never tied after the first goal?
[ "$\\frac{1}{7}$" ]
[ "Assuming the 14 goals scored in a match between Germany and Brazil could be scored in any order, what is the probability that the score was never tied after the first goal?" ]
[ "aops_c4_high_school_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-b67c501020eaba191f2f6ec4ab68461e33e872a5416ca57de6979ecf638930b3
Assuming the axiom of choice does not hold, does there exist a Riemann-Integrable bijection \( f : [0, 1] \to [0, 1] \) whose inverse is not Riemann-Integrable?
[ "No" ]
[ "Assuming the axiom of choice does not hold, does there exist a Riemann-Integrable bijection \\( f : [0, 1] \\to [0, 1] \\) whose inverse is not Riemann-Integrable?" ]
[ "aops_c7_college_math" ]
[ "cot", "genselect" ]
{ "cot": 13, "genselect": 1 }
14
0
0
omr-ws-3dabfaccbe4a2b3c46c0a08da9bf7059bcd4e33905a84b1fbcce521adf497d19
Assuming the constraint $4x - 3y = 0$ is correct, find a second constraint to determine the specific coordinates $(x, y)$ of the point on segment $AB$ that is closest to $C$.
[ "\\(\\left( \\frac{36}{25}, \\frac{48}{25}, 0 \\right)\\)" ]
[ "Assuming the constraint $4x - 3y = 0$ is correct, find a second constraint to determine the specific coordinates $(x, y)$ of the point on segment $AB$ that is closest to $C$." ]
[ "aops_c4_high_school_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-c4fa8b2fc559166d04ad0c2d0e9b038baa7e6877d803957283fb40a4a936a26c
Assuming the end of the slide is on the ground, what is the tallest a slide can be to the nearest hundredth of a foot if the horizontal distance from the end of the slide to the base of the ladder is 6.5 feet, given that the length of the slide must be at least twice its height?
[ "3.75" ]
[ "Assuming the end of the slide is on the ground, what is the tallest a slide can be to the nearest hundredth of a foot if the horizontal distance from the end of the slide to the base of the ladder is 6.5 feet, given that the length of the slide must be at least twice its height?" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-1c7506b125c87094edc5207e791560d257130461de23898d40d596d3ac64aa76
Assuming the number of goals per game is a Poisson variable based on the mean calculated in Problem 1, find the probability that: a) Exactly 3 goals are scored in the final match. b) More than 2 goals are scored in both semi-final matches. c) Exactly 2 goals are scored in two out of four quarter-final matches. d) Exact...
[ "0.144" ]
[ "Assuming the number of goals per game is a Poisson variable based on the mean calculated in Problem 1, find the probability that:\na) Exactly 3 goals are scored in the final match.\nb) More than 2 goals are scored in both semi-final matches.\nc) Exactly 2 goals are scored in two out of four quarter-final matches.\...
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 5 }
5
0
0
omr-ws-f327351c3adeff42a673ad9e3cbd3c454b58576b6f16dc38137064ea74d042cf
Assuming the orbits of Venus and Earth are circular with the Sun at the center and in the same plane, with radii of 108,200,000 km and 149,600,000 km respectively, what is the maximum possible angle (to the nearest degree) between Venus and the Sun as viewed from Earth?
[ "46" ]
[ "Assuming the orbits of Venus and Earth are circular with the Sun at the center and in the same plane, with radii of 108,200,000 km and 149,600,000 km respectively, what is the maximum possible angle (to the nearest degree) between Venus and the Sun as viewed from Earth?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 23 }
39
0
0
omr-ws-27584b3b342449135603631bbfa05e51562e6d587b923497a20a24f8a6a7cc2d
Assuming the problem asks for the y-intercept of the tangent line of a circle centered at the origin with area $\pi$ and slope $2$, what is the difference between this answer and the correct value of $\tan(2\pi)$?
[ "\\(\\sqrt{5}\\)" ]
[ "Assuming the problem asks for the y-intercept of the tangent line of a circle centered at the origin with area $\\pi$ and slope $2$, what is the difference between this answer and the correct value of $\\tan(2\\pi)$?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 29 }
45
0
0
omr-ws-46b39988a16654fa648cddfe30fa9b87592f1ff7da93aa0134f88e06a8312d77
Assuming the tank is full at time \( t = 0 \), find the value of \( h(t) \) at \( t = 144\sqrt{6} \) if \( h(t) = \left( -\frac{1}{144} t + \sqrt{6} \right)^2 \).
[ "0" ]
[ "Assuming the tank is full at time \\( t = 0 \\), find the value of \\( h(t) \\) at \\( t = 144\\sqrt{6} \\) if \\( h(t) = \\left( -\\frac{1}{144} t + \\sqrt{6} \\right)^2 \\)." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-6d06e8f70efb099da348994ed9e5779ec3c8611a9f92c0053b90ae6fdd0e5295
At $t = 0$ Tal starts walking in a line from the origin. He continues to walk forever at a rate of $1$ m/s and lives happily ever after. But Michael (who is Tal’s biggest fan) can’t bear to say goodbye. At $t = 10$ s he starts running on Tal’s path at a rate of $n$ such that $n > 1$ m/s. Michael runs to Tal, gives him ...
[ "\\dfrac{n + 1}{n - 1}" ]
[ "At $t = 0$ Tal starts walking in a line from the origin. He continues to walk forever at a rate of $1$ m/s and lives happily ever after. But Michael (who is Tal’s biggest fan) can’t bear to say goodbye. At $t = 10$ s he starts running on Tal’s path at a rate of $n$ such that $n > 1$ m/s. Michael runs to Tal, gives...
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-d5a83c5aca145bd9d260f92d928aa3a8954092a1da100f36159a867b1f0923e4
At $t = 0$, there is exactly $1$ $K$-fish in a pond. After each second, each $K$-fish has a $\left( \frac{1}{2} \right)^n$ probability of turning into $n^2$ $K$-fish for integers $n \ge 1$. What is the expected number of $K$-fish in the pond after 5 seconds?
[ "7776" ]
[ "At $t = 0$, there is exactly $1$ $K$-fish in a pond. After each second, each $K$-fish has a $\\left( \\frac{1}{2} \\right)^n$ probability of turning into $n^2$ $K$-fish for integers $n \\ge 1$. What is the expected number of $K$-fish in the pond after 5 seconds?" ]
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-c7e56f60e01e7997e4c1513ca055f07ddff06c2cd6f013b94d246d045a69ea5b
At 1 minute before 1 o'clock, we put the numbers from 1 to 10 in a vase and take out the number 1. At half a minute before 1 o'clock, we put the numbers from 11 to 20 in the vase and take out the number 2. At 1/3 of a minute before 1 o'clock, we put the numbers from 21 to 30 in the vase and take out the number 3, and s...
[ "0" ]
[ "At 1 minute before 1 o'clock, we put the numbers from 1 to 10 in a vase and take out the number 1. At half a minute before 1 o'clock, we put the numbers from 11 to 20 in the vase and take out the number 2. At 1/3 of a minute before 1 o'clock, we put the numbers from 21 to 30 in the vase and take out the number 3, ...
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-1753c4b2871c3bdcf17357ef02d41812ea35e4c018488c31d582ad1f55580208
At 11:00 a.m. how many degrees are in the smaller angle formed by the minute hand and the hour hand of the clock?
[ "30" ]
[ "At 11:00 a.m. how many degrees are in the smaller angle formed by the minute hand and the hour hand of the clock?" ]
[ "MATH_training_set" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-3a5932e30fdc279848ebde0438b98a51eecb4f14b755e6c6aefd49a93551a1f8
At 12 o'clock, the three hands of a clock (hour, minute, second) are in one line. What is the first time after noon where the second hand is the angle bisector of the angle formed by the hour and minute hands?
[ "\\dfrac{86400}{1427}" ]
[ "At 12 o'clock, the three hands of a clock (hour, minute, second) are in one line. What is the first time after noon where the second hand is the angle bisector of the angle formed by the hour and minute hands?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "genselect" ]
{ "cot": 9, "genselect": 8 }
17
0
0
omr-ws-2feafd4449c2ac8e903aaedd9a61a6a9e93d8e09050dd701fa25089c65a7035d
At 12:00 PM, the temperature of an oven and a chicken inside it is 100°F. After 50 minutes, the oven's temperature reaches 200°F. Determine the temperature of the chicken at 12:50 PM using an initial value problem (IVP) differential equation method, excluding Laplace Transforms.
[ "136.8" ]
[ "At 12:00 PM, the temperature of an oven and a chicken inside it is 100°F. After 50 minutes, the oven's temperature reaches 200°F. Determine the temperature of the chicken at 12:50 PM using an initial value problem (IVP) differential equation method, excluding Laplace Transforms." ]
[ "aops_c7_college_math" ]
[ "cot", "genselect" ]
{ "cot": 7, "genselect": 7 }
14
0
0
omr-ws-6b43c462bdf06c75b978c2a9252da1dd590a37b5a867c7eaf3ab782d71685789
At 12:00 noon, Anne, Beth, and Carmen begin running laps around a circular track of length 300 meters, all starting from the same point on the track. Each jogger maintains a constant speed in one of the two possible directions for an indefinite period of time. If Anne's speed is different from the other two speeds, cal...
[ "0", "100" ]
[ "At 12:00 noon, Anne, Beth, and Carmen begin running laps around a circular track of length 300 meters, all starting from the same point on the track. Each jogger maintains a constant speed in one of the two possible directions for an indefinite period of time. If Anne's speed is different from the other two speeds...
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 5, "genselect": 5 }
10
0
0