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reward_model
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deepscaler
[ { "role": "user", "content": "Circles of radius 2 and 3 are externally tangent and are circumscribed by a third circle, as shown in the figure. Find the area of the shaded region. Express your answer in terms of $\\pi$.\n\n[asy]\nfill(Circle((-1,0),5),gray(0.7));\nfill(Circle((-3,0),3),white);\nfill(circle(...
math
{ "style": "rule", "ground_truth": "12\\pi" }
{ "split": "train", "index": 36649, "solution": "" }
deepscaler
[ { "role": "user", "content": "David drives from his home to the airport to catch a flight. He drives $35$ miles in the first hour, but realizes that he will be $1$ hour late if he continues at this speed. He increases his speed by $15$ miles per hour for the rest of the way to the airport and arrives $30$ m...
math
{ "style": "rule", "ground_truth": "210" }
{ "split": "train", "index": 36650, "solution": "Let's denote the total distance from David's home to the airport as $d$ miles. According to the problem, David drives the first 35 miles in one hour. If he continues at this speed for the entire journey, he would be 1 hour late. This means that the total time requi...
deepscaler
[ { "role": "user", "content": "A triangular wire frame with side lengths of $13, 14, 15$ is fitted over a sphere with a radius of 10. Find the distance between the plane containing the triangle and the center of the sphere. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "2\\sqrt{21}" }
{ "split": "train", "index": 36651, "solution": "" }
deepscaler
[ { "role": "user", "content": "In quadrilateral $ABCD$, $\\angle B$ is a right angle, diagonal $\\overline{AC}$ is perpendicular to $\\overline{CD}$, $AB=18$, $BC=21$, and $CD=14$. Find the perimeter of $ABCD$.\n Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "84" }
{ "split": "train", "index": 36652, "solution": "" }
deepscaler
[ { "role": "user", "content": "At night, there was a heavy snowfall. In the morning, Xiao Long and his father measured the length of a circular path in the garden by walking. They started from the same point and walked in the same direction. Xiao Long's step length is 54 cm, and his father's step length is 7...
math
{ "style": "rule", "ground_truth": "21.6" }
{ "split": "train", "index": 36653, "solution": "" }
deepscaler
[ { "role": "user", "content": "At a conference of $40$ people, there are $25$ people who each know each other, and among them, $5$ people do not know $3$ other specific individuals in their group. The remaining $15$ people do not know anyone at the conference. People who know each other hug, and people who d...
math
{ "style": "rule", "ground_truth": "495" }
{ "split": "train", "index": 36654, "solution": "" }
deepscaler
[ { "role": "user", "content": "The line $y = 2x + c$ is tangent to the parabola $y^2 = 8x.$ Find $c.$ Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "1" }
{ "split": "train", "index": 36655, "solution": "" }
deepscaler
[ { "role": "user", "content": "In triangle $ABC$, let $AB = 4$, $AC = 7$, $BC = 9$, and $D$ lies on $\\overline{BC}$ such that $\\overline{AD}$ bisects $\\angle BAC$. Find $\\cos \\angle BAD$. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "\\sqrt{\\frac{5}{14}}" }
{ "split": "train", "index": 36656, "solution": "" }
deepscaler
[ { "role": "user", "content": "Let triangle $ABC$ be an equilateral triangle. A point $M$ in the plane of the triangle satisfies $\\overrightarrow{AM}=\\frac{1}{3}\\overrightarrow{AB}+\\frac{2}{3}\\overrightarrow{AC}$. The cosine value of the angle between the vectors $\\overrightarrow{AM}$ and $\\overrighta...
math
{ "style": "rule", "ground_truth": "\\frac{\\sqrt{7}}{14}" }
{ "split": "train", "index": 36657, "solution": "" }
deepscaler
[ { "role": "user", "content": "The dimensions of a rectangle $R$ are $a$ and $b$, $a < b$. It is required to obtain a rectangle with dimensions $x$ and $y$, $x < a, y < a$, so that its perimeter is one-third that of $R$, and its area is one-third that of $R$. The number of such (different) rectangles is: Let...
math
{ "style": "rule", "ground_truth": "0" }
{ "split": "train", "index": 36658, "solution": "1. **Given Information and Equations**:\n - The dimensions of rectangle $R$ are $a$ and $b$ with $a < b$.\n - We need to find a rectangle with dimensions $x$ and $y$ such that $x < a$, $y < a$, the perimeter is one-third that of $R$, and the area is one-third t...
deepscaler
[ { "role": "user", "content": "A triangle with vertices $(6, 5)$, $(8, -3)$, and $(9, 1)$ is reflected about the line $x=8$ to create a second triangle. What is the area of the union of the two triangles? Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "\\frac{32}{3}" }
{ "split": "train", "index": 36659, "solution": "1. **Identify the vertices and their reflections**: \n - Let $A = (6, 5)$, $B = (8, -3)$, and $C = (9, 1)$. \n - Reflecting over the line $x=8$, we find:\n - $A' = (10, 5)$ since reflecting $(6, 5)$ over $x=8$ moves it 2 units to the left of $x=8$, so it mo...
deepscaler
[ { "role": "user", "content": "In the diagram, all rows, columns, and diagonals have the sum 12. Find the sum of the four corner numbers. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "16" }
{ "split": "train", "index": 36660, "solution": "" }
deepscaler
[ { "role": "user", "content": "What is equal to $\\sqrt{9-6\\sqrt{2}}+\\sqrt{9+6\\sqrt{2}}$? Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "2\\sqrt{6}" }
{ "split": "train", "index": 36661, "solution": "1. **Simplify the expression**: We start by simplifying the expression $\\sqrt{9-6\\sqrt{2}}+\\sqrt{9+6\\sqrt{2}}$. We can factor out $\\sqrt{3}$ from each term under the square roots:\n \\[\n \\sqrt{9-6\\sqrt{2}}+\\sqrt{9+6\\sqrt{2}} = \\sqrt{3^2 - 6\\sqrt{2}}...
deepscaler
[ { "role": "user", "content": "Among all triangles $ABC,$ find the maximum value of $\\cos A + \\cos B \\cos C.$ 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": 36662, "solution": "" }
deepscaler
[ { "role": "user", "content": "Two distinct positive integers \\( x \\) and \\( y \\) are factors of 48. If \\( x \\cdot y \\) is not a factor of 48, what is the smallest possible value of \\( x \\cdot y \\)? Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "32" }
{ "split": "train", "index": 36663, "solution": "" }
deepscaler
[ { "role": "user", "content": "Sean enters a classroom in the Memorial Hall and sees a 1 followed by 2020 0's on the blackboard. As he is early for class, he decides to go through the digits from right to left and independently erase the $n$th digit from the left with probability $\\frac{n-1}{n}$. (In partic...
math
{ "style": "rule", "ground_truth": "681751" }
{ "split": "train", "index": 36664, "solution": "Suppose Sean instead follows this equivalent procedure: he starts with $M=10 \\ldots 0$, on the board, as before. Instead of erasing digits, he starts writing a new number on the board. He goes through the digits of $M$ one by one from left to right, and independen...
deepscaler
[ { "role": "user", "content": "Given the function $y=\\sin x$ and $y=\\sin (2x+ \\frac {\\pi}{3})$, determine the horizontal shift required to transform the graph of the function $y=\\sin x$ into the graph of the function $y=\\sin (2x+ \\frac {\\pi}{3})$. Let's think step by step and put only the final answe...
math
{ "style": "rule", "ground_truth": "\\frac {\\pi}{6}" }
{ "split": "train", "index": 36665, "solution": "" }
deepscaler
[ { "role": "user", "content": "Given an ellipse $C:\\frac{{{x}^{2}}}{{{a}^{2}}}+\\frac{{{y}^{2}}}{{{b}^{2}}}=1\\left( a > b > 0 \\right)$ with left and right focal points ${F}_{1},{F}_{2}$, and a point $P\\left( 1,\\frac{\\sqrt{2}}{2} \\right)$ on the ellipse such that $\\vert P{F}_{1}\\vert+\\vert P{F}_{2}\...
math
{ "style": "rule", "ground_truth": "\\frac{\\sqrt{2}}{2}" }
{ "split": "train", "index": 36666, "solution": "" }
deepscaler
[ { "role": "user", "content": "Given that $sinα + cosα = \\frac{\\sqrt{2}}{3}, α ∈ (0, π)$, find the value of $sin(α + \\frac{π}{12})$. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "\\frac{2\\sqrt{2} + \\sqrt{3}}{6}" }
{ "split": "train", "index": 36667, "solution": "" }
deepscaler
[ { "role": "user", "content": "Three faces of a rectangular box meet at a corner, and the centers of these faces form the vertices of a triangle with side lengths of 4 cm, 5 cm, and 6 cm. What is the volume of the box, in cm^3? Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "90 \\sqrt{6}" }
{ "split": "train", "index": 36668, "solution": "" }
deepscaler
[ { "role": "user", "content": "Evaluate $(\\sqrt[6]{4})^9$. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "8" }
{ "split": "train", "index": 36669, "solution": "" }
deepscaler
[ { "role": "user", "content": "Let $a$ , $b$ , $c$ , $d$ , $e$ , $f$ and $g$ be seven distinct positive integers not bigger than $7$ . Find all primes which can be expressed as $abcd+efg$ Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "179" }
{ "split": "train", "index": 36670, "solution": "" }
deepscaler
[ { "role": "user", "content": "In 2005, the ages of a brother and sister were 16 and 10 years old, respectively. In which year was the brother's age twice that of the sister's? Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "2001" }
{ "split": "train", "index": 36671, "solution": "" }
deepscaler
[ { "role": "user", "content": "Given vectors $\\overrightarrow{a} = (\\cos \\alpha, \\sin \\alpha)$ and $\\overrightarrow{b} = (\\cos \\beta, \\sin \\beta)$, with $|\\overrightarrow{a} - \\overrightarrow{b}| = \\frac{2\\sqrt{5}}{5}$.\n\n(Ⅰ) Find the value of $\\cos (\\alpha - \\beta)$;\n\n(Ⅱ) If $0 < \\alpha...
math
{ "style": "rule", "ground_truth": "\\frac{33}{65}" }
{ "split": "train", "index": 36672, "solution": "" }
deepscaler
[ { "role": "user", "content": "Alex the Kat has written $61$ problems for a math contest, and there are a total of $187$ problems submitted. How many more problems does he need to write (and submit) before he has written half of the total problems? Let's think step by step and put only the final answer w...
math
{ "style": "rule", "ground_truth": "65" }
{ "split": "train", "index": 36673, "solution": "" }
deepscaler
[ { "role": "user", "content": "Determine the value of $A + B + C$, where $A$, $B$, and $C$ are the dimensions of a three-dimensional rectangular box with faces having areas $40$, $40$, $90$, $90$, $100$, and $100$ square units. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "\\frac{83}{3}" }
{ "split": "train", "index": 36674, "solution": "" }
deepscaler
[ { "role": "user", "content": "Mr. Lopez has a choice of two routes to get to work. Route A is $6$ miles long, and his average speed along this route is $30$ miles per hour. Route B is $5$ miles long, and his average speed along this route is $40$ miles per hour, except for a $\\frac{1}{2}$-mile stretch in a...
math
{ "style": "rule", "ground_truth": "3 \\frac{3}{4}" }
{ "split": "train", "index": 36675, "solution": "To determine which route is quicker and by how many minutes, we need to calculate the time taken for each route and then compare them.\n\n#### Route A:\n- **Distance:** $6$ miles\n- **Speed:** $30$ miles per hour\n\nUsing the formula for time, $t = \\frac{d}{s}$, w...
deepscaler
[ { "role": "user", "content": "Provide a negative integer solution that satisfies the inequality $3x + 13 \\geq 0$. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "-1" }
{ "split": "train", "index": 36676, "solution": "" }
deepscaler
[ { "role": "user", "content": "Given the function $f(x)=\\sin ^{2}x+a\\sin x\\cos x-\\cos ^{2}x$, and $f(\\frac{\\pi }{4})=1$.\n(1) Find the value of the constant $a$;\n(2) Find the smallest positive period and minimum value of $f(x)$. Let's think step by step and put only the final answer within \\boxed{}."...
math
{ "style": "rule", "ground_truth": "-\\sqrt{2}" }
{ "split": "train", "index": 36677, "solution": "" }
deepscaler
[ { "role": "user", "content": "The Cayley Corner Store sells three types of toys: Exes, Wyes and Zeds. All Exes are identical, all Wyes are identical, and all Zeds are identical. The mass of 2 Exes equals the mass of 29 Wyes. The mass of 1 Zed equals the mass of 16 Exes. The mass of 1 Zed equals the mass of ...
math
{ "style": "rule", "ground_truth": "232" }
{ "split": "train", "index": 36678, "solution": "Since the mass of 2 Exes equals the mass of 29 Wyes, then the mass of $8 \\times 2$ Exes equals the mass of $8 \\times 29$ Wyes. In other words, the mass of 16 Exes equals the mass of 232 Wyes. Since the mass of 1 Zed equals the mass of 16 Exes, then the mass of 1 ...
deepscaler
[ { "role": "user", "content": "Derek fills a square $10$ by $10$ grid with $50$ $1$ s and $50$ $2$ s. He takes the product of the numbers in each of the $10$ rows. He takes the product of the numbers in each of the $10$ columns. He then sums these $20$ products up to get an integer $N.$ Fin...
math
{ "style": "rule", "ground_truth": "640" }
{ "split": "train", "index": 36679, "solution": "" }
deepscaler
[ { "role": "user", "content": "A convex polyhedron has $n$ faces that are all congruent triangles with angles $36^{\\circ}, 72^{\\circ}$, and $72^{\\circ}$. Determine, with proof, the maximum possible value of $n$. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "36" }
{ "split": "train", "index": 36680, "solution": "Answer: 36 Solution: Consider such a polyhedron with $V$ vertices, $E$ edges, and $F=n$ faces. By Euler's formula we have $V+F=E+2$. Next, note that the number of pairs of incident faces and edges is both $2E$ and $3F$, so $2E=3F$. Now, since our polyhedron is conv...
deepscaler
[ { "role": "user", "content": "A parking lot has 20 spaces in a row. Fifteen cars arrive, each of which requires one parking space, and their drivers choose spaces at random from among the available spaces. Uncle Ben arrives in his RV, which requires 3 adjacent spaces. What is the probability that he is able...
math
{ "style": "rule", "ground_truth": "\\frac{232}{323}" }
{ "split": "train", "index": 36681, "solution": "" }
deepscaler
[ { "role": "user", "content": "A high school is holding a speech contest with 10 participants. There are 3 students from Class 1, 2 students from Class 2, and 5 students from other classes. Using a draw to determine the speaking order, what is the probability that the 3 students from Class 1 are placed conse...
math
{ "style": "rule", "ground_truth": "\\frac{1}{20}" }
{ "split": "train", "index": 36682, "solution": "" }
deepscaler
[ { "role": "user", "content": "At the end of a professional bowling tournament, the top 6 bowlers have a playoff. First #6 bowls #5. The loser receives $6^{th}$ prize and the winner bowls #4 in another game. The loser of this game receives $5^{th}$ prize and the winner bowls #3. The loser of this game receiv...
math
{ "style": "rule", "ground_truth": "32" }
{ "split": "train", "index": 36683, "solution": "" }
deepscaler
[ { "role": "user", "content": "A club has $5$ members from each of $3$ different schools, for a total of $15$ members. How many possible ways are there to arrange a presidency meeting under the following conditions:\n\ni. The club must choose one of the $3$ schools at which to host the meeting, and\n\nii. Th...
math
{ "style": "rule", "ground_truth": "750" }
{ "split": "train", "index": 36684, "solution": "" }
deepscaler
[ { "role": "user", "content": "Given the set of positive odd numbers $\\{1, 3, 5, \\ldots\\}$, we are grouping them in order such that the $n$-th group contains $(2n-1)$ odd numbers, determine which group the number 2009 belongs to. Let's think step by step and put only the final answer within \\boxed{}." ...
math
{ "style": "rule", "ground_truth": "31" }
{ "split": "train", "index": 36685, "solution": "" }
deepscaler
[ { "role": "user", "content": "Steve's empty swimming pool will hold $24,000$ gallons of water when full. It will be filled by $4$ hoses, each of which supplies $2.5$ gallons of water per minute. How many hours will it take to fill Steve's pool? Let's think step by step and put only the final answer within \...
math
{ "style": "rule", "ground_truth": "40" }
{ "split": "train", "index": 36686, "solution": "1. **Calculate the total water flow rate per minute**: \n Each hose supplies $2.5$ gallons of water per minute. With $4$ hoses working together, the total water flow rate per minute is:\n \\[\n 4 \\times 2.5 = 10 \\text{ gallons per minute}\n \\]\n\n2. **Co...
deepscaler
[ { "role": "user", "content": "Let $p$, $q$, $r$, $s$, $t$, and $u$ be positive integers with $p+q+r+s+t+u = 2023$. Let $N$ be the largest of the sum $p+q$, $q+r$, $r+s$, $s+t$ and $t+u$. What is the smallest possible value of $N$? Let's think step by step and put only the final answer within \\boxed{}." }...
math
{ "style": "rule", "ground_truth": "810" }
{ "split": "train", "index": 36687, "solution": "" }
deepscaler
[ { "role": "user", "content": "There are 456 natives on an island, each of whom is either a knight who always tells the truth or a liar who always lies. All residents have different heights. Once, each native said, \"All other residents are shorter than me!\" What is the maximum number of natives who could h...
math
{ "style": "rule", "ground_truth": "454" }
{ "split": "train", "index": 36688, "solution": "" }
deepscaler
[ { "role": "user", "content": "Compute $\\cos 105^\\circ$. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "\\frac{\\sqrt{2} - \\sqrt{6}}{4}" }
{ "split": "train", "index": 36689, "solution": "" }
deepscaler
[ { "role": "user", "content": "If $y=\\frac{12x^4+4x^3+9x^2+5x+3}{3x^4+2x^3+8x^2+3x+1}$, at what value of $y$ will there be a horizontal asymptote? Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "4" }
{ "split": "train", "index": 36690, "solution": "" }
deepscaler
[ { "role": "user", "content": "Let $f(x)=2\\sqrt{3}\\sin(\\pi-x)\\sin x-(\\sin x-\\cos x)^{2}$. \n(I) Determine the intervals on which $f(x)$ is increasing; \n(II) On the graph of $y=f(x)$, if every horizontal coordinate of the points is stretched to twice its original value (vertical coordinate remains un...
math
{ "style": "rule", "ground_truth": "\\sqrt{3}" }
{ "split": "train", "index": 36691, "solution": "" }
deepscaler
[ { "role": "user", "content": "Find the maximum value of\n\\[f(x) = 3x - x^3\\]for $0 \\le x \\le \\sqrt{3}.$ Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "2" }
{ "split": "train", "index": 36692, "solution": "" }
deepscaler
[ { "role": "user", "content": "The sum of four numbers $p, q, r$, and $s$ is 100. If we increase $p$ by 10, we get the value $M$. If we decrease $q$ by 5, we get the value $M$. If we multiply $r$ by 10, we also get the value $M$. Lastly, if $s$ is divided by 2, it equals $M$. Determine the value of $M$. Let'...
math
{ "style": "rule", "ground_truth": "25.610" }
{ "split": "train", "index": 36693, "solution": "" }
deepscaler
[ { "role": "user", "content": "Given points $A, B$ and $C$ on a circle of radius $r$ are situated so that $AB=AC$, $AB>r$, and the length of minor arc $BC$ is $r$, calculate the ratio of the length of $AB$ to the length of $BC$. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "\\frac{1}{2}\\csc(\\frac{1}{4})" }
{ "split": "train", "index": 36694, "solution": "" }
deepscaler
[ { "role": "user", "content": "Consider the set of points that are inside or within one unit of a rectangular parallelepiped (box) that measures $3$ by $4$ by $5$ units. Given that the volume of this set is $\\frac{m + n\\pi}{p},$ where $m, n,$ and $p$ are positive integers, and $n$ and $p$ are relatively pr...
math
{ "style": "rule", "ground_truth": "505" }
{ "split": "train", "index": 36695, "solution": "[asy] size(220); import three; currentprojection = perspective(5,4,3); defaultpen(linetype(\"8 8\")+linewidth(0.6)); draw(box((0,-.1,0),(0.4,0.6,0.3))); draw(box((-.1,0,0),(0.5,0.5,0.3))); draw(box((0,0,-.1),(0.4,0.5,0.4))); draw(box((0,0,0),(0.4,0.5,0.3)),linewidt...
deepscaler
[ { "role": "user", "content": "Find the units digit of the sum, $$ 1! + 2! + 3! + \\cdots + 2006!. $$ Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "3" }
{ "split": "train", "index": 36696, "solution": "" }
deepscaler
[ { "role": "user", "content": "Each of the ten letters in ``MATHCOUNTS'' is written on its own square tile and placed in a bag. What is the probability that a tile randomly selected from the bag will have a letter on it that is in the word ``TEACH''? Express your answer as a common fraction. Let's think step...
math
{ "style": "rule", "ground_truth": "\\frac{1}{2}" }
{ "split": "train", "index": 36697, "solution": "" }
deepscaler
[ { "role": "user", "content": "Given the parabola \\( C: y^2 = 2x \\) whose directrix intersects the x-axis at point \\( A \\), a line \\( l \\) passing through point \\( B(-1,0) \\) is tangent to the parabola \\( C \\) at point \\( K \\). A line parallel to \\( l \\) is drawn through point \\( A \\) and int...
math
{ "style": "rule", "ground_truth": "\\frac{1}{2}" }
{ "split": "train", "index": 36698, "solution": "" }
deepscaler
[ { "role": "user", "content": "In a regular decagon $ABCDEFGHIJ$, points $K$, $L$, $M$, $N$, $O$, $P$, $Q$, $R$, and $S$ are selected on the sides $\\overline{AB}$, $\\overline{BC}$, $\\overline{CD}$, $\\overline{DE}$, $\\overline{EF}$, $\\overline{FG}$, $\\overline{GH}$, $\\overline{HI}$, and $\\overline{IJ...
math
{ "style": "rule", "ground_truth": "\\frac{3\\sqrt{3}}{40}" }
{ "split": "train", "index": 36699, "solution": "" }
deepscaler
[ { "role": "user", "content": "Determine the exact value of\n\\[\n\\sqrt{\\left( 2 - \\sin^2 \\frac{\\pi}{9} \\right) \\left( 2 - \\sin^2 \\frac{2 \\pi}{9} \\right) \\left( 2 - \\sin^2 \\frac{4 \\pi}{9} \\right)}.\n\\] Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "\\frac{\\sqrt{619}}{16}" }
{ "split": "train", "index": 36700, "solution": "" }
deepscaler
[ { "role": "user", "content": "In the xy-plane, what is the length of the shortest path from $(0,0)$ to $(15,20)$ that does not go inside the circle $(x-7)^2 + (y-9)^2 = 36$?\nA) $2\\sqrt{94} + 3\\pi$\nB) $2\\sqrt{130} + 3\\pi$\nC) $2\\sqrt{94} + 6\\pi$\nD) $2\\sqrt{130} + 6\\pi$\nE) $94 + 3\\pi$ Let's think...
math
{ "style": "rule", "ground_truth": "2\\sqrt{94} + 3\\pi" }
{ "split": "train", "index": 36701, "solution": "" }
deepscaler
[ { "role": "user", "content": "If $z=1+i$, then $|{iz+3\\overline{z}}|=\\_\\_\\_\\_\\_\\_$. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "2\\sqrt{2}" }
{ "split": "train", "index": 36702, "solution": "" }
deepscaler
[ { "role": "user", "content": "A store sells chalk in three types of packages: regular, unusual, and excellent. Initially, the quantitative ratio of the types was 2:3:6. After some packages of regular and unusual chalk—totaling no more than 100 packages—were delivered to the store, and $40\\%$ of the excelle...
math
{ "style": "rule", "ground_truth": "24" }
{ "split": "train", "index": 36703, "solution": "" }
deepscaler
[ { "role": "user", "content": "Given that point $P$ is a moving point on the parabola $y^{2}=2x$, find the minimum value of the sum of the distance from point $P$ to point $D(2, \\frac{3}{2} \\sqrt{3})$ and the distance from point $P$ to the $y$-axis. Let's think step by step and put only the final answer wi...
math
{ "style": "rule", "ground_truth": "\\frac{5}{2}" }
{ "split": "train", "index": 36704, "solution": "" }
deepscaler
[ { "role": "user", "content": "Let \\( Q \\) be a point chosen uniformly at random in the interior of the unit square with vertices at \\( (0,0), (1,0), (1,1) \\), and \\( (0,1) \\). Find the probability that the slope of the line determined by \\( Q \\) and the point \\( \\left(\\frac{3}{4}, \\frac{1}{4} \\...
math
{ "style": "rule", "ground_truth": "\\frac{1}{2}" }
{ "split": "train", "index": 36705, "solution": "" }
deepscaler
[ { "role": "user", "content": "Evaluate\n\\[\\left \\lfloor \\ \\prod_{n=1}^{1992} \\frac{3n+2}{3n+1} \\ \\right \\rfloor\\] Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "12" }
{ "split": "train", "index": 36706, "solution": "\nGiven the problem, we want to evaluate:\n\n\\[\n\\left\\lfloor \\prod_{n=1}^{1992} \\frac{3n+2}{3n+1} \\right\\rfloor\n\\]\n\nTo solve this, we will analyze the product:\n\n\\[\nP = \\prod_{n=1}^{1992} \\frac{3n+2}{3n+1}\n\\]\n\n### Step 1: Simplify the Expressio...
deepscaler
[ { "role": "user", "content": "The jury, when preparing versions of the district math olympiad problems for grades $7, 8, 9, 10, 11$, aims to ensure that each version for each grade contains exactly 7 problems, of which exactly 4 do not appear in any other version. What is the maximum number of problems that...
math
{ "style": "rule", "ground_truth": "27" }
{ "split": "train", "index": 36707, "solution": "" }
deepscaler
[ { "role": "user", "content": "Given an ellipse $C:\\frac{{x}^{2}}{{a}^{2}}+\\frac{{y}^{2}}{{b}^{2}}=1(a>b>0)$ with foci $F_{1}$ and $F_{2}$, point $A$ lies on $C$, point $B$ lies on the $y$-axis, and satisfies $\\overrightarrow{A{F}_{1}}⊥\\overrightarrow{B{F}_{1}}$, $\\overrightarrow{A{F}_{2}}=\\frac{2}{3}\...
math
{ "style": "rule", "ground_truth": "\\frac{\\sqrt{5}}{5}" }
{ "split": "train", "index": 36708, "solution": "" }
deepscaler
[ { "role": "user", "content": "Determine how many prime dates occurred in 2008, a leap year. A \"prime date\" is when both the month and the day are prime numbers. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "53" }
{ "split": "train", "index": 36709, "solution": "" }
deepscaler
[ { "role": "user", "content": "Kate has saved up $4444_8$ dollars for a trip to France. A round-trip airline ticket costs $1000_{10}$ dollars. In base ten, how many dollars will she have left for lodging and food? Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "1340" }
{ "split": "train", "index": 36710, "solution": "" }
deepscaler
[ { "role": "user", "content": "Let $K$ be the measure of the area bounded by the $x$-axis, the line $x=8$, and the curve defined by\n\\[f=\\{(x,y)\\quad |\\quad y=x \\text{ when } 0 \\le x \\le 5, y=2x-5 \\text{ when } 5 \\le x \\le 8\\}.\\]\nThen $K$ is: Let's think step by step and put only the final a...
math
{ "style": "rule", "ground_truth": "36.5" }
{ "split": "train", "index": 36711, "solution": "1. **Identify the functions and intervals:**\n The function $f(x)$ is defined piecewise:\n - For $0 \\leq x \\leq 5$, $f(x) = x$.\n - For $5 \\leq x \\leq 8$, $f(x) = 2x - 5$.\n\n2. **Calculate the area of the triangle formed by the first part of the function...
deepscaler
[ { "role": "user", "content": "In right triangle $ABC$, we have $\\sin A = \\frac{3}{5}$ and $\\sin B = 1$. Find $\\sin C$. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "\\frac{4}{5}" }
{ "split": "train", "index": 36712, "solution": "" }
deepscaler
[ { "role": "user", "content": "Given a line $l$ with an inclination angle of $\\theta$, if $\\cos\\theta= \\frac {4}{5}$, calculate the slope of this line. 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": 36713, "solution": "" }
deepscaler
[ { "role": "user", "content": "Let $\\lfloor x \\rfloor$ represent the integer part of the real number $x$, and $\\{x\\}$ represent the fractional part of the real number $x$, e.g., $\\lfloor 3.1 \\rfloor = 3, \\{3.1\\} = 0.1$. It is known that all terms of the sequence $\\{a\\_n\\}$ are positive, $a\\_1 = \...
math
{ "style": "rule", "ground_truth": "4032 + \\sqrt{2}" }
{ "split": "train", "index": 36714, "solution": "" }
deepscaler
[ { "role": "user", "content": "On the sides of a unit square, points \\( K, L, M, \\) and \\( N \\) are marked such that line \\( KM \\) is parallel to two sides of the square, and line \\( LN \\) is parallel to the other two sides of the square. The segment \\( KL \\) cuts off a triangle from the square wit...
math
{ "style": "rule", "ground_truth": "\\frac{1}{4}" }
{ "split": "train", "index": 36715, "solution": "" }
deepscaler
[ { "role": "user", "content": "A company decides to increase the price of a product by 20%. If they aim to increase their total income by 10% despite the decrease in demand, by what proportion must the demand decrease to meet this new income goal? Let's think step by step and put only the final answer within...
math
{ "style": "rule", "ground_truth": "\\frac{1}{12}" }
{ "split": "train", "index": 36716, "solution": "" }
deepscaler
[ { "role": "user", "content": "Given point P(2, 1) is on the parabola $C_1: x^2 = 2py$ ($p > 0$), and the line $l$ passes through point Q(0, 2) and intersects the parabola $C_1$ at points A and B.\n(1) Find the equation of the parabola $C_1$ and the equation for the trajectory $C_2$ of the midpoint M of chor...
math
{ "style": "rule", "ground_truth": "\\sqrt{3}" }
{ "split": "train", "index": 36717, "solution": "" }
deepscaler
[ { "role": "user", "content": "The hypotenuse of a right triangle measures $9$ inches, and one angle is $30^{\\circ}$. What is the number of square inches in the area of the triangle? Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "10.125\\sqrt{3}" }
{ "split": "train", "index": 36718, "solution": "" }
deepscaler
[ { "role": "user", "content": "João, Jorge, José, and Jânio are good friends. One time, João was out of money, but his friends had some. So Jorge gave João a fifth of his money, José gave João a fourth of his money, and Jânio gave João a third of his money. If all of them gave the same amount of money to Joã...
math
{ "style": "rule", "ground_truth": "1/4" }
{ "split": "train", "index": 36719, "solution": "" }
deepscaler
[ { "role": "user", "content": "The exchange rate of the cryptocurrency Chukhoyn was one dollar on March 1, and then increased by one dollar each day. The exchange rate of the cryptocurrency Antonium was also one dollar on March 1, and then each day thereafter, it was equal to the sum of the previous day's ra...
math
{ "style": "rule", "ground_truth": "92/91" }
{ "split": "train", "index": 36720, "solution": "" }
deepscaler
[ { "role": "user", "content": "The set \\( S \\) is given by \\( S = \\{1, 2, 3, 4, 5, 6\\} \\). A non-empty subset \\( T \\) of \\( S \\) has the property that it contains no pair of integers that share a common factor other than 1. How many distinct possibilities are there for \\( T \\)? Let's think step b...
math
{ "style": "rule", "ground_truth": "27" }
{ "split": "train", "index": 36721, "solution": "" }
deepscaler
[ { "role": "user", "content": "Solve for $x$ if $\\frac{2}{x+3} + \\frac{3x}{x+3} - \\frac{4}{x+3} = 4$. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "-14" }
{ "split": "train", "index": 36722, "solution": "" }
deepscaler
[ { "role": "user", "content": "Find the integer that is closest to $2000\\sum_{n=2}^{5000}\\frac{1}{n^2-1}$. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "1500" }
{ "split": "train", "index": 36723, "solution": "" }
deepscaler
[ { "role": "user", "content": "Ashley, Betty, Carlos, Dick, and Elgin went shopping. Each had a whole number of dollars to spend, and together they had $56$ dollars. The absolute difference between the amounts Ashley and Betty had to spend was $19$ dollars. The absolute difference between the amounts Betty a...
math
{ "style": "rule", "ground_truth": "10" }
{ "split": "train", "index": 36724, "solution": "Let's denote the amount of money each person has as follows:\n- Ashley: $A$\n- Betty: $B$\n- Carlos: $C$\n- Dick: $D$\n- Elgin: $E$\n\nFrom the problem, we have the following equations based on the absolute differences:\n1. $|A - B| = 19$\n2. $|B - C| = 7$\n3. $|C ...
deepscaler
[ { "role": "user", "content": "There are $10$ horses, named Horse $1$, Horse $2$, . . . , Horse $10$. They get their names from how many minutes it takes them to run one lap around a circular race track: Horse $k$ runs one lap in exactly $k$ minutes. At time $0$ all the horses are together at the starting po...
math
{ "style": "rule", "ground_truth": "6" }
{ "split": "train", "index": 36725, "solution": "To solve this problem, we need to find the least time $T > 0$ such that at least $5$ of the horses are again at the starting point. Each horse $k$ returns to the starting point at multiples of $k$ minutes. Therefore, we are looking for the smallest time $T$ that is...
deepscaler
[ { "role": "user", "content": "Let $ABCDE$ be an equiangular convex pentagon of perimeter $1$. The pairwise intersections of the lines that extend the sides of the pentagon determine a five-pointed star polygon. Let $s$ be the perimeter of this star. What is the difference between the maximum and the minimum...
math
{ "style": "rule", "ground_truth": "0" }
{ "split": "train", "index": 36726, "solution": "1. **Identify the Geometry of the Pentagon**: Given that $ABCDE$ is an equiangular convex pentagon, each interior angle is $\\frac{180^\\circ \\times (5-2)}{5} = 108^\\circ$.\n\n2. **Extend the Sides to Form a Star**: Extending the sides of the pentagon forms a fiv...
deepscaler
[ { "role": "user", "content": "Points $P, Q, R, S, T, U, V,$ and $W$ lie, in that order, on line $\\overline{PW}$, dividing it into seven equal segments, each of length 1. Point $X$ is not on line $PW$. Points $Y$ and $Z$ lie on line segments $\\overline{XR}$ and $\\overline{XW}$ respectively. The line segme...
math
{ "style": "rule", "ground_truth": "\\frac{7}{6}" }
{ "split": "train", "index": 36727, "solution": "" }
deepscaler
[ { "role": "user", "content": "Given the function $f(x)=3x^3+2$, find the value of $x$ so that $f^{-1}(x)=4$. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "194" }
{ "split": "train", "index": 36728, "solution": "" }
deepscaler
[ { "role": "user", "content": "Given $f(x) = ax^3 + bx^9 + 2$ has a maximum value of 5 on the interval $(0, +\\infty)$, find the minimum value of $f(x)$ on the interval $(-\\infty, 0)$. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "-1" }
{ "split": "train", "index": 36729, "solution": "" }
deepscaler
[ { "role": "user", "content": "Several people completed the task of planting 2013 trees, with each person planting the same number of trees. If 5 people do not participate in the planting, the remaining people each need to plant 2 more trees but still cannot complete the task. However, if each person plants ...
math
{ "style": "rule", "ground_truth": "61" }
{ "split": "train", "index": 36730, "solution": "" }
deepscaler
[ { "role": "user", "content": "In response to the national medical and health system reform and the \"Three Visits to the Countryside\" cultural and scientific activities nationwide in 2023, to truly implement the concept of \"putting the people first\" and promote the transfer and decentralization of high-q...
math
{ "style": "rule", "ground_truth": "\\frac{2}{5}" }
{ "split": "train", "index": 36731, "solution": "" }
deepscaler
[ { "role": "user", "content": "In triangle $PQR$, the sides $PQ$, $QR$, and $RP$ measure 17, 15, and 8 units, respectively. Let $J$ be the incenter of triangle $PQR$. The incircle of triangle $PQR$ touches side $QR$, $RP$, and $PQ$ at points $K$, $L$, and $M$, respectively. Determine the length of $PJ$. Let'...
math
{ "style": "rule", "ground_truth": "\\sqrt{34}" }
{ "split": "train", "index": 36732, "solution": "" }
deepscaler
[ { "role": "user", "content": "A frog sits at the point $(2, 3)$ on a grid within a larger square bounded by points $(0,0), (0,6), (6,6)$, and $(6,0)$. Each jump the frog makes is parallel to one of the coordinate axes and has a length $1$. The direction of each jump (up, down, left, right) is not necessaril...
math
{ "style": "rule", "ground_truth": "\\frac{5}{8}" }
{ "split": "train", "index": 36733, "solution": "" }
deepscaler
[ { "role": "user", "content": "Determine all integers $k\\geqslant 1$ with the following property: given $k$ different colours, if each integer is coloured in one of these $k$ colours, then there must exist integers $a_1<a_2<\\cdots<a_{2023}$ of the same colour such that the differences $a_2-a_1,a_3-a_2,\\do...
math
{ "style": "rule", "ground_truth": "1 \\text{ and } 2" }
{ "split": "train", "index": 36734, "solution": "\nTo solve this problem, we need to determine integers \\( k \\geqslant 1 \\) such that when the integers are coloured with \\( k \\) different colours, there exist integers \\( a_1 < a_2 < \\cdots < a_{2023} \\) all of the same colour, where the differences \\( a_...
deepscaler
[ { "role": "user", "content": "A box contains one hundred multicolored balls: 28 red, 20 green, 13 yellow, 19 blue, 11 white, and 9 black. What is the minimum number of balls that must be drawn from the box, without looking, to ensure that at least 15 balls of one color are among them? Let's think step by st...
math
{ "style": "rule", "ground_truth": "76" }
{ "split": "train", "index": 36735, "solution": "" }
deepscaler
[ { "role": "user", "content": "Let complex numbers $\\omega_{1}=-\\frac{1}{2}+\\frac{\\sqrt{3}}{2}i$ and $\\omega_{2}=\\cos\\frac{\\pi}{12}+\\sin\\frac{\\pi}{12}i$. If $z=\\omega_{1}\\cdot\\omega_{2}$, find the imaginary part of the complex number $z$. Let's think step by step and put only the final answer w...
math
{ "style": "rule", "ground_truth": "\\frac { \\sqrt {2}}{2}" }
{ "split": "train", "index": 36736, "solution": "" }
deepscaler
[ { "role": "user", "content": "\nVasya wrote consecutive natural numbers \\( N \\), \\( N+1 \\), \\( N+2 \\), and \\( N+3 \\) in rectangles. Under each rectangle, he wrote the sum of the digits of the corresponding number in a circle.\n\nThe sum of the numbers in the first two circles turned out to be 200, a...
math
{ "style": "rule", "ground_truth": "103" }
{ "split": "train", "index": 36737, "solution": "" }
deepscaler
[ { "role": "user", "content": "The measures of angles $A$ and $B$ are both positive, integer numbers of degrees. The measure of angle $A$ is a multiple of the measure of angle $B$, and angles $A$ and $B$ are complementary angles. How many measures are possible for angle $A$? Let's think step by step and put ...
math
{ "style": "rule", "ground_truth": "11" }
{ "split": "train", "index": 36738, "solution": "" }
deepscaler
[ { "role": "user", "content": "Determine the number of pairs $(a,b)$ of real numbers such that $10, a, b, ab$ is an arithmetic progression. Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "2" }
{ "split": "train", "index": 36739, "solution": "" }
deepscaler
[ { "role": "user", "content": "Let \\( M = 35 \\cdot 36 \\cdot 65 \\cdot 280 \\). Calculate the ratio of the sum of the odd divisors of \\( M \\) to the sum of the even divisors of \\( M \\). Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "1:62" }
{ "split": "train", "index": 36740, "solution": "" }
deepscaler
[ { "role": "user", "content": "What is the $y$-intercept of the line $x - 2y = 5$? 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": 36741, "solution": "" }
deepscaler
[ { "role": "user", "content": "Place four different balls - red, black, blue, and yellow - into three different boxes, with at least one ball in each box. The red and blue balls cannot be in the same box. How many different arrangements are there? Let's think step by step and put only the final answer within...
math
{ "style": "rule", "ground_truth": "30" }
{ "split": "train", "index": 36742, "solution": "" }
deepscaler
[ { "role": "user", "content": "The picture shows several circles connected by segments. Tanya chooses a natural number \\( n \\) and places different natural numbers in the circles so that the following property holds for all these numbers:\n\nIf numbers \\( a \\) and \\( b \\) are not connected by a segment...
math
{ "style": "rule", "ground_truth": "65" }
{ "split": "train", "index": 36743, "solution": "" }
deepscaler
[ { "role": "user", "content": "$100$ numbers $1$, $1/2$, $1/3$, $...$, $1/100$ are written on the blackboard. One may delete two arbitrary numbers $a$ and $b$ among them and replace them by the number $a + b + ab$. After $99$ such operations only one number is left. What is this final number?\n\n(D. Fomin, L...
math
{ "style": "rule", "ground_truth": "101" }
{ "split": "train", "index": 36744, "solution": "\nInitially, we have $100$ numbers written on the blackboard: \\(1, \\frac{1}{2}, \\frac{1}{3}, \\ldots, \\frac{1}{100}\\). In each step, two numbers \\(a\\) and \\(b\\) are selected and replaced with the number \\(a + b + ab\\). This process is repeated until only...
deepscaler
[ { "role": "user", "content": "Points $E$ and $F$ lie on $\\overline{GH}$. The length of $\\overline{GE}$ is $3$ times the length of $\\overline{EH}$, and the length of $\\overline{GF}$ is $5$ times the length of $\\overline{FH}$. Determine the length of $\\overline{EF}$ as a fraction of the length of $\\ove...
math
{ "style": "rule", "ground_truth": "\\frac{1}{12}" }
{ "split": "train", "index": 36745, "solution": "" }
deepscaler
[ { "role": "user", "content": "Regular hexagon $ABCDEF$ has vertices $A$ and $C$ at $(0,0)$ and $(7,1)$, respectively. What is its area? Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "25\\sqrt{3}" }
{ "split": "train", "index": 36746, "solution": "" }
deepscaler
[ { "role": "user", "content": "Andy the Ant lives on a coordinate plane and is currently at $(-20, 20)$ facing east (that is, in the positive $x$-direction). Andy moves $1$ unit and then turns $90^{\\circ}$ left. From there, Andy moves $2$ units (north) and then turns $90^{\\circ}$ left. He then moves $3$ un...
math
{ "style": "rule", "ground_truth": "(-1030, -990)" }
{ "split": "train", "index": 36747, "solution": "To solve this problem, we need to understand the pattern of Andy's movements and how his position changes with each move. Andy starts at $(-20, 20)$ and moves in a spiral pattern, increasing the distance he moves by $1$ unit after each turn, and always turning left...
deepscaler
[ { "role": "user", "content": "How many integers $n$ satisfy $(n-2)(n+4)<0$? Let's think step by step and put only the final answer within \\boxed{}." } ]
math
{ "style": "rule", "ground_truth": "5" }
{ "split": "train", "index": 36748, "solution": "" }