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deepscaler
[ { "role": "user", "content": "Mobile payment (Alipay and WeChat Pay) has gradually become a payment method for people's shopping consumption. To investigate the age structure of citizens using mobile payment, a random survey of 100 citizens was conducted, and a $2\\times 2$ contingency table was obtained as...
math
{ "style": "rule", "ground_truth": "\\frac{8}{5}" }
{ "split": "train", "index": 37349, "solution": "" }
deepscaler
[ { "role": "user", "content": "Squares of side length 1 are arranged to form the figure shown. What is the perimeter of the figure? [asy]\n\nsize(6cm);\n\npath sqtop = (0, 0)--(0, 1)--(1, 1)--(1, 0);\n\npath sqright = (0, 1)--(1, 1)--(1, 0)--(0, 0);\n\npath horiz = (0, 0)--(1, 0); path vert = (0, 0)--(0, 1);...
math
{ "style": "rule", "ground_truth": "26" }
{ "split": "train", "index": 37350, "solution": "" }
deepscaler
[ { "role": "user", "content": "If the real numbers \\(x\\) and \\(y\\) satisfy the equation \\((x-2)^{2}+(y-1)^{2}=1\\), then the minimum value of \\(x^{2}+y^{2}\\) is \\_\\_\\_\\_\\_. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "6-2\\sqrt{5}" }
{ "split": "train", "index": 37351, "solution": "" }
deepscaler
[ { "role": "user", "content": "Given that $x_{1}$ and $x_{2}$ are two real roots of the one-variable quadratic equation $x^{2}-6x+k=0$, and (choose one of the conditions $A$ or $B$ to answer the following questions).<br/>$A$: $x_1^2x_2^2-x_1-x_2=115$;<br/>$B$: $x_1^2+x_2^2-6x_1-6x_2+k^2+2k-121=0$.<br/>$(1)$ ...
math
{ "style": "rule", "ground_truth": "-11" }
{ "split": "train", "index": 37352, "solution": "" }
deepscaler
[ { "role": "user", "content": "A hollow silver sphere with an outer diameter of $2 R = 1 \\mathrm{dm}$ is exactly half-submerged in water. What is the thickness of the sphere's wall if the specific gravity of silver is $s = 10.5$? Let's think step by step and put only the final answer within \\boxed{}." } ...
math
{ "style": "rule", "ground_truth": "0.008" }
{ "split": "train", "index": 37353, "solution": "" }
deepscaler
[ { "role": "user", "content": "A square with an integer side length was cut into 2020 smaller squares. It is known that the areas of 2019 of these squares are 1, while the area of the 2020th square is not equal to 1. Find all possible values that the area of the 2020th square can take. Provide the smallest o...
math
{ "style": "rule", "ground_truth": "112225" }
{ "split": "train", "index": 37354, "solution": "" }
deepscaler
[ { "role": "user", "content": "\nCompute the definite integral:\n\n$$\n\\int_{0}^{\\frac{\\pi}{4}} \\left( x^{2} + 17.5 \\right) \\sin 2x \\, dx\n$$ Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "\\frac{68 + \\pi}{8}" }
{ "split": "train", "index": 37355, "solution": "" }
deepscaler
[ { "role": "user", "content": "The inhabitants of the Isle of Concatenate use an extended alphabet of 25 letters (A through Y). Each word in their language has a maximum length of 5 letters, and every word must include the letter A at least once. How many such words are possible? Let's think step by step and...
math
{ "style": "rule", "ground_truth": "1863701" }
{ "split": "train", "index": 37356, "solution": "" }
deepscaler
[ { "role": "user", "content": "How many pages does the book \"Folk Tales\" have if from the first page to the last page, a total of 357 digits were used to number the pages? Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "155" }
{ "split": "train", "index": 37357, "solution": "" }
deepscaler
[ { "role": "user", "content": "What is $2\\frac{1}{4}$ divided by $\\frac{2}{3}$? Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "\\frac{27}{8}" }
{ "split": "train", "index": 37358, "solution": "" }
deepscaler
[ { "role": "user", "content": "Each face of a cube is painted either red or blue, each with probability 1/2. The color of each face is determined independently. What is the probability that the painted cube can be placed on a horizontal surface so that the four vertical faces are all the same color? Let's ...
math
{ "style": "rule", "ground_truth": "\\frac{5}{16}" }
{ "split": "train", "index": 37359, "solution": "" }
deepscaler
[ { "role": "user", "content": "Solve the following equations: \n2x + 62 = 248;           x - 12.7 = 2.7;          x ÷ 5 = 0.16;            7x + 2x = 6.3. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "0.7" }
{ "split": "train", "index": 37360, "solution": "" }
deepscaler
[ { "role": "user", "content": "Let \\(x,\\) \\(y,\\) \\(z\\) be real numbers such that \\(9x^2 + 4y^2 + 25z^2 = 1.\\) Find the maximum value of\n\\[8x + 3y + 10z.\\] Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "\\sqrt{173}" }
{ "split": "train", "index": 37361, "solution": "" }
deepscaler
[ { "role": "user", "content": "For a sequence $a_1<a_2<\\cdots<a_n$ of integers, a pair $(a_i,a_j)$ with $1\\leq i<j\\leq n$ is called [i]interesting[/i] if there exists a pair $(a_k,a_l)$ of integers with $1\\leq k<l\\leq n$ such that $$\\frac{a_l-a_k}{a_j-a_i}=2.$$ For each $n\\geq 3$, find the largest pos...
math
{ "style": "rule", "ground_truth": "\\binom{n}{2} - (n - 2)" }
{ "split": "train", "index": 37362, "solution": "\nConsider a sequence \\(a_1 < a_2 < \\cdots < a_n\\) of integers. We want to determine the largest possible number of interesting pairs \\((a_i, a_j)\\) where \\(1 \\leq i < j \\leq n\\). A pair \\((a_i, a_j)\\) is defined as **interesting** if there exists anothe...
deepscaler
[ { "role": "user", "content": "If $2\\tan\\alpha=3\\tan \\frac{\\pi}{8}$, then $\\tan\\left(\\alpha- \\frac{\\pi}{8}\\right)=$ ______. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "\\frac{5\\sqrt{2}+1}{49}" }
{ "split": "train", "index": 37363, "solution": "" }
deepscaler
[ { "role": "user", "content": "Two players play alternately on a $ 5 \\times 5$ board. The first player always enters a $ 1$ into an empty square and the second player always enters a $ 0$ into an empty square. When the board is full, the sum of the numbers in each of the nine $ 3 \\times 3$ squares is calcu...
math
{ "style": "rule", "ground_truth": "6" }
{ "split": "train", "index": 37364, "solution": "\nTo determine the largest score the first player can achieve, we must analyze how the scores are calculated and devise a strategy for maximizing the score in any \\(3 \\times 3\\) square.\n\nThe board is a \\(5 \\times 5\\) grid, so we have several overlapping \\(...
deepscaler
[ { "role": "user", "content": "Frieda the frog begins a sequence of hops on a $3 \\times 3$ grid of squares, moving one square on each hop and choosing at random the direction of each hop-up, down, left, or right. She does not hop diagonally. When the direction of a hop would take Frieda off the grid, she \"...
math
{ "style": "rule", "ground_truth": "\\frac{13}{16}" }
{ "split": "train", "index": 37365, "solution": "To solve this problem, we will calculate the probability that Frieda reaches a corner square within four hops, starting from the center of a $3 \\times 3$ grid. We will use a state-based approach to model Frieda's possible positions and transitions.\n\n#### Definit...
deepscaler
[ { "role": "user", "content": "Every high school in the city of Euclid sent a team of $3$ students to a math contest. Each participant in the contest received a different score. Andrea's score was the median among all students, and hers was the highest score on her team. Andrea's teammates Beth and Carla pla...
math
{ "style": "rule", "ground_truth": "23" }
{ "split": "train", "index": 37366, "solution": "1. **Understanding the problem setup**: Each school sends 3 students, so the total number of students is $3n$, where $n$ is the number of schools. Andrea's score is the median, and she scored the highest in her team. Her teammates Beth and Carla placed 37th and 64t...
deepscaler
[ { "role": "user", "content": "A natural number $N$ greater than 20 is a palindromic number in both base 14 and base 20 (A palindromic number is a number that reads the same forwards and backwards, such as 12321 and 3443, but not 12331). What is the smallest value of $N$ (expressed in decimal)? Let's think s...
math
{ "style": "rule", "ground_truth": "105" }
{ "split": "train", "index": 37367, "solution": "" }
deepscaler
[ { "role": "user", "content": "Let $\\alpha$ and $\\beta$ be conjugate complex numbers such that $\\frac{\\alpha}{\\beta^2}$ is a real number and $|\\alpha - \\beta| = 2 \\sqrt{3}.$ Find $|\\alpha|.$ Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "2" }
{ "split": "train", "index": 37368, "solution": "" }
deepscaler
[ { "role": "user", "content": "Knowing that the system\n\\[x + y + z = 3,\\]\\[x^3 + y^3 + z^3 = 15,\\]\\[x^4 + y^4 + z^4 = 35,\\]\nhas a real solution $x, y, z$ for which $x^2 + y^2 + z^2 < 10$, find the value of $x^5 + y^5 + z^5$ for that solution. Let's think step by step and put only the final answer wit...
math
{ "style": "rule", "ground_truth": "83" }
{ "split": "train", "index": 37369, "solution": "\nTo solve for \\( x^5 + y^5 + z^5 \\) given the system of equations:\n\n1. \\( x + y + z = 3 \\)\n2. \\( x^3 + y^3 + z^3 = 15 \\)\n3. \\( x^4 + y^4 + z^4 = 35 \\)\n\nand the condition:\n\n\\[ x^2 + y^2 + z^2 < 10, \\]\n\nwe will utilize symmetric polynomials and N...
deepscaler
[ { "role": "user", "content": "Given triangle \\( \\triangle ABC \\) with internal angles \\( A, B, C \\) opposite to sides \\( a, b, c \\) respectively, vectors \\( \\vec{m} = (1, 1 - \\sqrt{3} \\sin A) \\) and \\( \\vec{n} = (\\cos A, 1) \\), and \\( \\vec{m} \\perp \\vec{n} \\):\n(1) Find angle \\( A \\);...
math
{ "style": "rule", "ground_truth": "\\frac{\\sqrt{3}}{2}" }
{ "split": "train", "index": 37370, "solution": "" }
deepscaler
[ { "role": "user", "content": "Find the fraction that equals $0.\\overline{4}$. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "\\frac{4}{9}" }
{ "split": "train", "index": 37371, "solution": "" }
deepscaler
[ { "role": "user", "content": "A dessert chef prepares the dessert for every day of a week starting with Sunday. The dessert each day is either cake, pie, ice cream, or pudding. The same dessert may not be served two days in a row. There must be cake on Friday because of a birthday. How many different desser...
math
{ "style": "rule", "ground_truth": "729" }
{ "split": "train", "index": 37372, "solution": "1. **Identify the constraints and setup the problem:**\n - The chef has to prepare desserts for 7 days starting from Sunday.\n - The desserts options are cake, pie, ice cream, or pudding.\n - The same dessert cannot be served on consecutive days.\n - Cake m...
deepscaler
[ { "role": "user", "content": "Evaluate $99\\times 99$ in your head. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "9801" }
{ "split": "train", "index": 37373, "solution": "" }
deepscaler
[ { "role": "user", "content": "Find all real numbers $x,y,z$ so that\n\\begin{align*}\n x^2 y + y^2 z + z^2 &= 0 \\\\\n z^3 + z^2 y + z y^3 + x^2 y &= \\frac{1}{4}(x^4 + y^4).\n\\end{align*} Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "(0, 0, 0)" }
{ "split": "train", "index": 37374, "solution": "\nTo solve the system of equations for real numbers \\( x, y, \\) and \\( z \\):\n\n\\[\nx^2 y + y^2 z + z^2 = 0\n\\]\n\n\\[\nz^3 + z^2 y + z y^3 + x^2 y = \\frac{1}{4}(x^4 + y^4),\n\\]\n\nwe proceed with the following approach:\n\n### Step 1: Analyze the First Equ...
deepscaler
[ { "role": "user", "content": "The numbers $4x, 2x-3, 4x-3$ are three consecutive terms in an arithmetic sequence. What is the value of $x$? Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "-\\frac{3}{4}" }
{ "split": "train", "index": 37375, "solution": "Since $4x, 2x-3, 4x-3$ form an arithmetic sequence, then the differences between consecutive terms are equal, or $(2x-3)-4x=(4x-3)-(2x-3)$. Thus, $-2x-3=2x$ or $4x=-3$ and so $x=-\\frac{3}{4}$." }
deepscaler
[ { "role": "user", "content": "A string has been cut into 4 pieces, all of different lengths. The length of each piece is 2 times the length of the next smaller piece. What fraction of the original string is the longest piece? Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "\\frac{8}{15}" }
{ "split": "train", "index": 37376, "solution": "Let \\(L\\) be the length of the string. If \\(x\\) is the length of the shortest piece, then since each of the other pieces is twice the length of the next smaller piece, then the lengths of the remaining pieces are \\(2x, 4x\\), and \\(8x\\). Since these four pie...
deepscaler
[ { "role": "user", "content": "Given that the graph of the power function $y=(m^{2}-2m-2)x^{m^{2}+4m}$ is symmetric with respect to the origin and does not intersect the $x$-axis or $y$-axis, determine the value of the integer $m$. Let's think step by step and put only the final answer within \\boxed{}." }...
math
{ "style": "rule", "ground_truth": "-1" }
{ "split": "train", "index": 37377, "solution": "" }
deepscaler
[ { "role": "user", "content": "Find all irreducible fractions \\( \\frac{a}{b} \\) that can be represented in the form \\( b, a \\) (comma separates the decimal representations of natural numbers \\( b \\) and \\( a \\)). Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "\\frac{5}{2}" }
{ "split": "train", "index": 37378, "solution": "" }
deepscaler
[ { "role": "user", "content": "Compute the sum of $x^2+y^2$ over all four ordered pairs $(x,y)$ of real numbers satisfying $x=y^2-20$ and $y=x^2+x-21$ .\n\n\n*2021 CCA Math Bonanza Lightning Round #3.4* Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "164" }
{ "split": "train", "index": 37379, "solution": "" }
deepscaler
[ { "role": "user", "content": "Half of the blue flowers are tulips, five sixths of the yellow flowers are daisies, and four fifths of the flowers are yellow. What percent of the flowers are tulips? Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "23.3" }
{ "split": "train", "index": 37380, "solution": "" }
deepscaler
[ { "role": "user", "content": "The points $A$, $B$ and $C$ lie on the surface of a sphere with center $O$ and radius $20$. It is given that $AB=13$, $BC=14$, $CA=15$, and that the distance from $O$ to $\\triangle ABC$ is $\\frac{m\\sqrt{n}}k$, where $m$, $n$, and $k$ are positive integers, $m$ and $k$ are re...
math
{ "style": "rule", "ground_truth": "118" }
{ "split": "train", "index": 37381, "solution": "" }
deepscaler
[ { "role": "user", "content": "Given the function $f(x)=x^{2}-2x$ where $x \\in [-2,a]$. Find the minimum value of $f(x)$. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "-1" }
{ "split": "train", "index": 37382, "solution": "" }
deepscaler
[ { "role": "user", "content": "Given the hyperbola $\\frac{x^{2}}{4} - \\frac{y^{2}}{2} = 1$ with three non-collinear points $A$, $B$, $C$ on it. The midpoints of $AB$, $BC$, $AC$ are $D$, $E$, $F$ respectively. If the sum of the slopes of $OD$, $OE$, $OF$ is $-1$, find the value of $\\frac{1}{k_{AB}} + \\fr...
math
{ "style": "rule", "ground_truth": "-2" }
{ "split": "train", "index": 37383, "solution": "" }
deepscaler
[ { "role": "user", "content": "Let $f : \\mathbb{R} \\to \\mathbb{R}$ be a function such that\n\\[f((x - y)^2) = f(x)^2 - 2xf(y) + y^2\\]for all real numbers $x$ and $y.$\n\nLet $n$ be the number of possible values of $f(1),$ and let $s$ be the sum of all possible values of $f(1).$ Find $n \\times s.$ Let's...
math
{ "style": "rule", "ground_truth": "6" }
{ "split": "train", "index": 37384, "solution": "" }
deepscaler
[ { "role": "user", "content": "On the game show $\\text{\\emph{Wheel of Fortune II}}$, you observe a spinner with the labels [\"Bankrupt\", \"$\\$700$\", \"$\\$900$\", \"$\\$200$\", \"$\\$3000$\", \"$\\$800$\"]. Given that each region has equal area, determine the probability of earning exactly $\\$2400$ in ...
math
{ "style": "rule", "ground_truth": "\\frac{1}{36}" }
{ "split": "train", "index": 37385, "solution": "" }
deepscaler
[ { "role": "user", "content": "For a four-digit natural number $M$, let the digit in the thousands place be $a$, in the hundreds place be $b$, in the tens place be $c$, and in the units place be $d$. The two-digit number formed by the thousands and units digits of $M$ is $A=10a+d$, and the two-digit number f...
math
{ "style": "rule", "ground_truth": "8892" }
{ "split": "train", "index": 37386, "solution": "" }
deepscaler
[ { "role": "user", "content": "Five people, named A, B, C, D, and E, stand in a row. If A and B must be adjacent, and B must be to the left of A, what is the total number of different arrangements? Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "24" }
{ "split": "train", "index": 37387, "solution": "" }
deepscaler
[ { "role": "user", "content": "How many ways are there for Nick to travel from $(0,0)$ to $(16,16)$ in the coordinate plane by moving one unit in the positive $x$ or $y$ direction at a time, such that Nick changes direction an odd number of times? Let's think step by step and put only the final answer within...
math
{ "style": "rule", "ground_truth": "2 \\cdot\\binom{30}{15} = 310235040" }
{ "split": "train", "index": 37388, "solution": "This condition is equivalent to the first and last step being in different directions, as if you switch directions an odd number of times, you must end in a different direction than you started. If the first step is in the $x$ direction and the last step is in the ...
deepscaler
[ { "role": "user", "content": "Let $ a,\\ b$ be the real numbers such that $ 0\\leq a\\leq b\\leq 1$ . Find the minimum value of $ \\int_0^1 |(x\\minus{}a)(x\\minus{}b)|\\ dx$ . Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "1/12" }
{ "split": "train", "index": 37389, "solution": "" }
deepscaler
[ { "role": "user", "content": "In triangle $ABC, \\angle A=2 \\angle C$. Suppose that $AC=6, BC=8$, and $AB=\\sqrt{a}-b$, where $a$ and $b$ are positive integers. Compute $100 a+b$. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "7303" }
{ "split": "train", "index": 37390, "solution": "Let $x=AB$, and $\\angle C=\\theta$, then $\\angle A=2 \\theta$ and $\\angle B=180-3 \\theta$. Extend ray $BA$ to $D$ so that $AD=AC$. We know that $\\angle CAD=180-2 \\theta$, and since $\\triangle ADC$ is isosceles, it follows that $\\angle ADC=\\angle ACD=\\thet...
deepscaler
[ { "role": "user", "content": "In space, there are four spheres with radii 2, 2, 3, and 3. Each sphere is externally tangent to the other three spheres. Additionally, there is a smaller sphere that is externally tangent to all four of these spheres. Find the radius of this smaller sphere. Let's think step by...
math
{ "style": "rule", "ground_truth": "\\frac{6}{2 - \\sqrt{26}}" }
{ "split": "train", "index": 37391, "solution": "" }
deepscaler
[ { "role": "user", "content": "Given circle $O: x^2+y^2=r^2(r>0)$, $A(x_1, y_1)$, $B(x_2, y_2)$ are two points on circle $O$, satisfying $x_1+y_1=x_2+y_2=3$, $x_1x_2+y_1y_2=-\\frac{1}{2}r^2$, calculate the value of $r$. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "3\\sqrt{2}" }
{ "split": "train", "index": 37392, "solution": "" }
deepscaler
[ { "role": "user", "content": "There are 94 safes and 94 keys. Each key can open only one safe, and each safe can be opened by only one key. We place randomly one key into each safe. 92 safes are then randomly chosen, and then locked. What is the probability that we can open all the safes with the two keys i...
math
{ "style": "rule", "ground_truth": "1/47" }
{ "split": "train", "index": 37393, "solution": "" }
deepscaler
[ { "role": "user", "content": "Find the sum of the values of $x$ such that $\\cos^3 3x+ \\cos^3 5x = 8 \\cos^3 4x \\cos^3 x$, where $x$ is measured in degrees and $100< x< 200.$\n Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "906" }
{ "split": "train", "index": 37394, "solution": "" }
deepscaler
[ { "role": "user", "content": "If $9:y^3 = y:81$, what is the value of $y$? Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "3\\sqrt{3}" }
{ "split": "train", "index": 37395, "solution": "" }
deepscaler
[ { "role": "user", "content": "Given the curve $C$: $y^{2}=4x$ with a focus at point $F$, a line $l$ passes through point $F$ and intersects curve $C$ at points $P$ and $Q$. If the relationship $\\overrightarrow{FP}+2\\overrightarrow{FQ}=\\overrightarrow{0}$ holds, calculate the area of triangle $OPQ$. Let's...
math
{ "style": "rule", "ground_truth": "\\frac{3\\sqrt{2}}{2}" }
{ "split": "train", "index": 37396, "solution": "" }
deepscaler
[ { "role": "user", "content": "Given that point P is a point on the graph of the function f(x)=e^(2x), find the minimum distance from point P to the line l:y=2x. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "\\frac{\\sqrt{5}}{5}" }
{ "split": "train", "index": 37397, "solution": "" }
deepscaler
[ { "role": "user", "content": "Shuxin begins with 10 red candies, 7 yellow candies, and 3 blue candies. After eating some of the candies, there are equal numbers of red, yellow, and blue candies remaining. What is the smallest possible number of candies that Shuxin ate? Let's think step by step and put only ...
math
{ "style": "rule", "ground_truth": "11" }
{ "split": "train", "index": 37398, "solution": "For there to be equal numbers of each colour of candy, there must be at most 3 red candies and at most 3 yellow candies, since there are 3 blue candies to start. Thus, Shuxin ate at least 7 red candies and at least 4 yellow candies. This means that Shuxin ate at le...
deepscaler
[ { "role": "user", "content": "Ms. Garcia weighed the packages in three different pairings and obtained weights of 162, 164, and 168 pounds. Find the total weight of all four packages. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "247" }
{ "split": "train", "index": 37399, "solution": "" }
deepscaler
[ { "role": "user", "content": "The parabolas $y = (x + 1)^2$ and $x + 4 = (y - 3)^2$ intersect at four points $(x_1,y_1),$ $(x_2,y_2),$ $(x_3,y_3),$ and $(x_4,y_4).$ Find\n\\[x_1 + x_2 + x_3 + x_4 + y_1 + y_2 + y_3 + y_4.\\] Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "8" }
{ "split": "train", "index": 37400, "solution": "" }
deepscaler
[ { "role": "user", "content": "For how many three-digit positive integers is the sum of the digits equal to $5?$ Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "15" }
{ "split": "train", "index": 37401, "solution": "" }
deepscaler
[ { "role": "user", "content": "With all angles measured in degrees, calculate the product $\\prod_{k=1}^{30} \\csc^2(3k)^\\circ$, and express the result as $m^n$, where $m$ and $n$ are integers greater than 1. Find $m+n$. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "31" }
{ "split": "train", "index": 37402, "solution": "" }
deepscaler
[ { "role": "user", "content": "For how many integers $n$ between 1 and 20 (inclusive) is $\\frac{n}{18}$ a repeating decimal? Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "18" }
{ "split": "train", "index": 37403, "solution": "" }
deepscaler
[ { "role": "user", "content": "100 \\times 19.98 \\times 1.998 \\times 1000= Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "(1998)^2" }
{ "split": "train", "index": 37404, "solution": "1. **Calculate the product of $19.98$ and $100$:**\n \\[\n 19.98 \\times 100 = 1998\n \\]\n This step involves multiplying $19.98$ by $100$, which effectively shifts the decimal point two places to the right.\n\n2. **Calculate the product of $1.998$ and $10...
deepscaler
[ { "role": "user", "content": "Two lines with slopes $\\frac{1}{2}$ and $2$ intersect at $(2,2)$. What is the area of the triangle enclosed by these two lines and the line $x+y=10$ ? Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "6" }
{ "split": "train", "index": 37405, "solution": "1. **Identify the equations of the lines**: \n - The line with slope $\\frac{1}{2}$ passing through $(2,2)$ has the equation $y - 2 = \\frac{1}{2}(x - 2)$, which simplifies to $y = \\frac{1}{2}x + 1$.\n - The line with slope $2$ passing through $(2,2)$ has the ...
deepscaler
[ { "role": "user", "content": "The average years of experience of three employees, David, Emma, and Fiona, at a company is 12 years. Five years ago, Fiona had the same years of experience as David has now. In 4 years, Emma's experience will be $\\frac{3}{4}$ of David's experience at that time. How many years...
math
{ "style": "rule", "ground_truth": "\\frac{183}{11}" }
{ "split": "train", "index": 37406, "solution": "" }
deepscaler
[ { "role": "user", "content": "The calculator's keyboard has digits from 0 to 9 and symbols of two operations. Initially, the display shows the number 0. Any keys can be pressed. The calculator performs operations in the sequence of key presses. If an operation symbol is pressed several times in a row, the c...
math
{ "style": "rule", "ground_truth": "1/3" }
{ "split": "train", "index": 37407, "solution": "" }
deepscaler
[ { "role": "user", "content": "During the military training for new freshman students, after two days of shooting practice, student A can hit the target 9 times out of 10 shots, and student B can hit the target 8 times out of 9 shots. A and B each take a shot at the same target (their shooting attempts do no...
math
{ "style": "rule", "ground_truth": "\\frac{89}{90}" }
{ "split": "train", "index": 37408, "solution": "" }
deepscaler
[ { "role": "user", "content": "Given that $a_{1}, a_{2}, b_{1}, b_{2}, \\cdots, b_{k}$ are vectors in the plane that are pairwise non-parallel, with $\\left|a_{1}-a_{2}\\right|=1$, and $\\left|a_{i}-b_{j}\\right| \\in\\{1,2,3\\} (i=1,2; j=1,2, \\cdots, k)$, determine the maximum value of $k$. Let's think ste...
math
{ "style": "rule", "ground_truth": "10" }
{ "split": "train", "index": 37409, "solution": "" }
deepscaler
[ { "role": "user", "content": "Let the reciprocals of the roots of $5x^2 + 3x + 4$ be $\\alpha$ and $\\beta$. Evaluate $\\alpha + \\beta$. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "-\\dfrac{3}{4}" }
{ "split": "train", "index": 37410, "solution": "" }
deepscaler
[ { "role": "user", "content": "Given the function $f(x)=\\sin(\\omega x+\\varphi)$ is monotonically increasing on the interval ($\\frac{π}{6}$,$\\frac{{2π}}{3}$), and the lines $x=\\frac{π}{6}$ and $x=\\frac{{2π}}{3}$ are the two symmetric axes of the graph of the function $y=f(x)$, evaluate the value of $f(...
math
{ "style": "rule", "ground_truth": "\\frac{\\sqrt{3}}{2}" }
{ "split": "train", "index": 37411, "solution": "" }
deepscaler
[ { "role": "user", "content": "A cylinder with a volume of 21 is inscribed in a cone. The plane of the upper base of this cylinder cuts off a truncated cone with a volume of 91 from the original cone. Find the volume of the original cone. Let's think step by step and put only the final answer within \\boxed{...
math
{ "style": "rule", "ground_truth": "94.5" }
{ "split": "train", "index": 37412, "solution": "" }
deepscaler
[ { "role": "user", "content": "How many integers $-15 \\leq n \\leq 15$ satisfy $(n-3)(n+5)(n+9) < 0$? Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "13" }
{ "split": "train", "index": 37413, "solution": "" }
deepscaler
[ { "role": "user", "content": "Given the function \\( f: \\mathbf{R} \\rightarrow \\mathbf{R} \\), for any real numbers \\( x, y, z \\), the inequality \\(\\frac{1}{3} f(x y) + \\frac{1}{3} f(x z) - f(x) f(y z) \\geq \\frac{1}{9} \\) always holds. Find the value of \\(\\sum_{i=1}^{100} [i f(i)]\\), where \\(...
math
{ "style": "rule", "ground_truth": "1650" }
{ "split": "train", "index": 37414, "solution": "" }
deepscaler
[ { "role": "user", "content": "Two circles of radius 3 are centered at $(3,0)$ and at $(0,3)$. What is the area of the intersection of the interiors of the two circles? Express your answer in fully expanded form in terms of $\\pi$. Let's think step by step and put only the final answer within \\boxed{}." }...
math
{ "style": "rule", "ground_truth": "\\frac{9\\pi}{2} - 9" }
{ "split": "train", "index": 37415, "solution": "" }
deepscaler
[ { "role": "user", "content": "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? Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "38" }
{ "split": "train", "index": 37416, "solution": "" }
deepscaler
[ { "role": "user", "content": "Two players, A and B, play a game called \"draw the joker card\". In the beginning, Player A has $n$ different cards. Player B has $n+1$ cards, $n$ of which are the same with the $n$ cards in Player A's hand, and the rest one is a Joker (different from all other $n$ cards). The...
math
{ "style": "rule", "ground_truth": "n=32" }
{ "split": "train", "index": 37417, "solution": "We denote $a_{n}$ to be the probability that A wins the game when A has $n$ cards in the beginning. So we have $$ \\begin{equation*} a_{1}=\\frac{1}{2}+\\frac{1}{2} \\cdot \\frac{1}{2} a_{1} \\tag{1} \\end{equation*} $$ Therefore, $a_{1}=\\frac{2}{3}$. In addition,...
deepscaler
[ { "role": "user", "content": "Solve the equation: $(2x+1)^2=3$. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "\\frac{-1-\\sqrt{3}}{2}" }
{ "split": "train", "index": 37418, "solution": "" }
deepscaler
[ { "role": "user", "content": "$(1)$ Calculate: $|2-\\sqrt{3}|+(\\sqrt{2}+1)^0+3\\tan30°+(-1)^{2023}-(\\frac{1}{2})^{-1}$. \n$(2)$ Simplify first and then find the value: $(\\frac{x-1}{x}-\\frac{x-2}{x+1})÷\\frac{2x^2-x}{x^2+2x+1}$, where $x$ satisfies $x^{2}-2x-2=0$. Let's think step by step and put only t...
math
{ "style": "rule", "ground_truth": "\\frac{1}{2}" }
{ "split": "train", "index": 37419, "solution": "" }
deepscaler
[ { "role": "user", "content": "There are two alloys of copper and zinc. In the first alloy, there is twice as much copper as zinc, and in the second alloy, there is five times less copper than zinc. In what ratio should these alloys be combined to obtain a new alloy in which zinc is twice as much as copper? ...
math
{ "style": "rule", "ground_truth": "1 : 2" }
{ "split": "train", "index": 37420, "solution": "" }
deepscaler
[ { "role": "user", "content": "In triangle $\\triangle ABC$, the sides opposite angles $A$, $B$, and $C$ are $a$, $b$, and $c$, respectively, with $c=4$. Point $D$ is on $CD\\bot AB$, and $c\\cos C\\cos \\left(A-B\\right)+4=c\\sin ^{2}C+b\\sin A\\sin C$. Find the maximum value of the length of segment $CD$. ...
math
{ "style": "rule", "ground_truth": "2\\sqrt{3}" }
{ "split": "train", "index": 37421, "solution": "" }
deepscaler
[ { "role": "user", "content": "Given: $\\cos\\left(\\alpha+ \\frac{\\pi}{4}\\right) = \\frac{3}{5}$, $\\frac{\\pi}{2} < \\alpha < \\frac{3\\pi}{2}$, find $\\cos\\left(2\\alpha+ \\frac{\\pi}{4}\\right)$. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "-\\frac{31\\sqrt{2}}{50}" }
{ "split": "train", "index": 37422, "solution": "" }
deepscaler
[ { "role": "user", "content": "Given that Marie has 2500 coins consisting of pennies (1-cent coins), nickels (5-cent coins), and dimes (10-cent coins) with at least one of each type of coin, calculate the difference in cents between the greatest possible and least amounts of money that Marie can have. Let's ...
math
{ "style": "rule", "ground_truth": "22473" }
{ "split": "train", "index": 37423, "solution": "" }
deepscaler
[ { "role": "user", "content": "In $\\triangle{ABC}, AB=13, \\angle{A}=45^\\circ$, and $\\angle{C}=30^\\circ$. Let $H, D,$ and $M$ be points on the line $BC$ such that $AH\\perp{BC}$, $\\angle{BAD}=\\angle{CAD}$, and $BM=CM$. Point $N$ is the midpoint of the segment $HM$, and point $P$ is on ray $AD$ such tha...
math
{ "style": "rule", "ground_truth": "171" }
{ "split": "train", "index": 37424, "solution": "" }
deepscaler
[ { "role": "user", "content": "A standard die is rolled six times. What is the probability that the product of all six rolls is odd? Express your answer as a common fraction. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "\\frac{1}{64}" }
{ "split": "train", "index": 37425, "solution": "" }
deepscaler
[ { "role": "user", "content": "Find the minimum value of the expression \\(\\frac{13 x^{2}+24 x y+13 y^{2}+16 x+14 y+68}{\\left(9-x^{2}-8 x y-16 y^{2}\\right)^{5 / 2}}\\). Round the answer to the nearest hundredth if needed. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "0.26" }
{ "split": "train", "index": 37426, "solution": "" }
deepscaler
[ { "role": "user", "content": "In $\\triangle ABC$ lines $CE$ and $AD$ are drawn so that $\\dfrac{CD}{DB}=\\dfrac{3}{1}$ and $\\dfrac{AE}{EB}=\\dfrac{3}{2}$. Let $r=\\dfrac{CP}{PE}$ where $P$ is the intersection point of $CE$ and $AD$. Then $r$ equals:\n[asy] size(8cm); pair A = (0, 0), B = (9, 0), C = (3, 6...
math
{ "style": "rule", "ground_truth": "5" }
{ "split": "train", "index": 37427, "solution": "" }
deepscaler
[ { "role": "user", "content": "Given the parametric equation of curve $C_1$ as $$\\begin{cases} x=2t-1 \\\\ y=-4t-2 \\end{cases}$$ (where $t$ is the parameter), and establishing a polar coordinate system with the origin $O$ as the pole and the positive half-axis of $x$ as the polar axis, the polar equation o...
math
{ "style": "rule", "ground_truth": "\\frac {3 \\sqrt {5}}{10}" }
{ "split": "train", "index": 37428, "solution": "" }
deepscaler
[ { "role": "user", "content": "Given a number $\\overline{abcd}$ , where $a$ , $b$ , $c$ , and $d$ , represent the digits of $\\overline{abcd}$ , find the minimum value of\n\\[\\frac{\\overline{abcd}}{a+b+c+d}\\]\nwhere $a$ , $b$ , $c$ , and $d$ are distinct\n<details><summary>Answer</summary>$\\o...
math
{ "style": "rule", "ground_truth": "60.5" }
{ "split": "train", "index": 37429, "solution": "" }
deepscaler
[ { "role": "user", "content": "Calculate the integral\n\n$$\n\\int_{0}^{0.1} \\cos \\left(100 x^{2}\\right) d x\n$$\n\nwith an accuracy of $\\alpha=0.001$. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "0.090" }
{ "split": "train", "index": 37430, "solution": "" }
deepscaler
[ { "role": "user", "content": "Given that $α∈(0, \\dfrac {π}{2})$ and $β∈(0, \\dfrac {π}{2})$, with $cos⁡α= \\dfrac {1}{7}$ and $cos⁡(α+β)=- \\dfrac {11}{14}$, find the value of $sin⁡β$. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "\\dfrac{\\sqrt{3}}{2}" }
{ "split": "train", "index": 37431, "solution": "" }
deepscaler
[ { "role": "user", "content": "Compute $11^{-1} \\pmod{1105}$, where $1105=5\\cdot 13 \\cdot 17$. Express your answer as a residue from $0$ to $1104$, inclusive. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "201" }
{ "split": "train", "index": 37432, "solution": "" }
deepscaler
[ { "role": "user", "content": "How many ways are there to arrange the letters of the word $\\text{C}_1\\text{O}_1\\text{M}_1\\text{M}_2\\text{U}_1\\text{N}_1\\text{I}_1\\text{T}_1$, in which the two M's are considered different? Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "40320" }
{ "split": "train", "index": 37433, "solution": "" }
deepscaler
[ { "role": "user", "content": "Distribute 61 books to a class of students. If at least one person must receive at least 3 books, what is the maximum number of students in the class? Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "30" }
{ "split": "train", "index": 37434, "solution": "" }
deepscaler
[ { "role": "user", "content": "Solve for $c$: \\[\\frac{c-23}{2} = \\frac{2c +5}{7}.\\] Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "57" }
{ "split": "train", "index": 37435, "solution": "" }
deepscaler
[ { "role": "user", "content": "Find the domain of the function $f(x) = \\tan(\\arccos(x^2)).$ Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "[-1,0) \\cup (0,1]" }
{ "split": "train", "index": 37436, "solution": "" }
deepscaler
[ { "role": "user", "content": "At the end of the year, the Math Club decided to hold an election for which 5 equal officer positions were available. However, 16 candidates were nominated, of whom 7 were past officers. Of all possible elections of the officers, how many will have at least 1 of the past office...
math
{ "style": "rule", "ground_truth": "4242" }
{ "split": "train", "index": 37437, "solution": "" }
deepscaler
[ { "role": "user", "content": "A polygon is said to be friendly if it is regular and it also has angles that, when measured in degrees, are either integers or half-integers (i.e., have a decimal part of exactly 0.5). How many different friendly polygons are there? Let's think step by step and put only the fi...
math
{ "style": "rule", "ground_truth": "28" }
{ "split": "train", "index": 37438, "solution": "" }
deepscaler
[ { "role": "user", "content": "Given a sequence $\\{a_n\\}$ satisfying $a_1=0$, for any $k\\in N^*$, $a_{2k-1}$, $a_{2k}$, $a_{2k+1}$ form an arithmetic sequence with a common difference of $k$. If $b_n= \\dfrac {(2n+1)^{2}}{a_{2n+1}}$, calculate the sum of the first $10$ terms of the sequence $\\{b_n\\}$. L...
math
{ "style": "rule", "ground_truth": "\\dfrac {450}{11}" }
{ "split": "train", "index": 37439, "solution": "" }
deepscaler
[ { "role": "user", "content": "Let \\(ABC\\) be a triangle such that the altitude from \\(A\\), the median from \\(B\\), and the internal angle bisector from \\(C\\) meet at a single point. If \\(BC = 10\\) and \\(CA = 15\\), find \\(AB^2\\). Let's think step by step and put only the final answer within \\bo...
math
{ "style": "rule", "ground_truth": "205" }
{ "split": "train", "index": 37440, "solution": "" }
deepscaler
[ { "role": "user", "content": "Define a sequence of convex polygons \\( P_n \\) as follows. \\( P_0 \\) is an equilateral triangle with side length 1. \\( P_{n+1} \\) is obtained from \\( P_n \\) by cutting off the corners one-third of the way along each side (for example, \\( P_1 \\) is a regular hexagon wi...
math
{ "style": "rule", "ground_truth": "\\frac{\\sqrt{3}}{7}" }
{ "split": "train", "index": 37441, "solution": "" }
deepscaler
[ { "role": "user", "content": "Given six test scores have a mean of $85$, a median of $86$, and a mode of $88$. Determine the sum of the two lowest test scores. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "162" }
{ "split": "train", "index": 37442, "solution": "" }
deepscaler
[ { "role": "user", "content": "To prevent the spread of the novel coronavirus, individuals need to maintain a safe distance of at least one meter between each other. In a certain meeting room with four rows and four columns of seats, the distance between adjacent seats is more than one meter. During the epid...
math
{ "style": "rule", "ground_truth": "11" }
{ "split": "train", "index": 37443, "solution": "" }
deepscaler
[ { "role": "user", "content": "In a geometric sequence \\(\\{z_{n}\\}\\), given \\(z_{1}=1\\), \\(z_{2}=a+b \\mathrm{i}\\), \\(z_{3}=b+a \\mathrm{i}\\) where \\(a, b \\in \\mathbf{R}\\) and \\(a>0\\), find the smallest value of \\(n\\) such that \\(z_{1}+z_{2}+\\cdots+z_{n}=0\\), and compute the value of \\(...
math
{ "style": "rule", "ground_truth": "-1" }
{ "split": "train", "index": 37444, "solution": "" }
deepscaler
[ { "role": "user", "content": "Three balls are lying on a table, each pair touching each other. The radii of the balls form a geometric progression with a common ratio \\( q \\neq 1 \\). The radius of the middle ball is 2012. Find the ratio of the sum of the squares of the sides of the triangle formed by the...
math
{ "style": "rule", "ground_truth": "4024" }
{ "split": "train", "index": 37445, "solution": "" }
deepscaler
[ { "role": "user", "content": "Let the function $f(x)=2\\tan \\frac{x}{4}\\cdot \\cos^2 \\frac{x}{4}-2\\cos^2\\left(\\frac{x}{4}+\\frac{\\pi }{12}\\right)+1$.\n\n(Ⅰ) Find the smallest positive period and the domain of $f(x)$;\n\n(Ⅱ) Find the intervals of monotonicity and the extremum of $f(x)$ in the interva...
math
{ "style": "rule", "ground_truth": "-\\frac{\\sqrt{3}}{2}" }
{ "split": "train", "index": 37446, "solution": "" }
deepscaler
[ { "role": "user", "content": "There are real numbers $a, b, c, d$ such that for all $(x, y)$ satisfying $6y^2 = 2x^3 + 3x^2 + x$ , if $x_1 = ax + b$ and $y_1 = cy + d$ , then $y_1^2 = x_1^3 - 36x_1$ . What is $a + b + c + d$ ? Let's think step by step and put only the final answer within \\boxed{}...
math
{ "style": "rule", "ground_truth": "90" }
{ "split": "train", "index": 37447, "solution": "" }
deepscaler
[ { "role": "user", "content": "A collection of five positive integers has mean 4.4, unique mode 3 and median 4. If an 8 is added to the collection, what is the new median? Express your answer as a decimal to the nearest tenth. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "4.5" }
{ "split": "train", "index": 37448, "solution": "" }