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omr-ws-fb45ad8961a7a258b4ba6efb0ca5ad46f7376f3b14f91465328b3f5d5069aa84
Three men (Ram, Gopal, and Amit) and their wives (Jaya, Uma, and Sujata) each bought sheep at the market. Each person bought as many sheep as the number of rupees they paid for one sheep. Ram bought 23 more sheep than Uma, Gopal bought 11 more sheep than Jaya, and each man spent 63 rupees more than his wife. Determine ...
[ "Ram is married to Uma, Gopal is married to Jaya, and Amit is married to Sujata." ]
[ "Three men (Ram, Gopal, and Amit) and their wives (Jaya, Uma, and Sujata) each bought sheep at the market. Each person bought as many sheep as the number of rupees they paid for one sheep. Ram bought 23 more sheep than Uma, Gopal bought 11 more sheep than Jaya, and each man spent 63 rupees more than his wife. Deter...
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 10, "genselect": 2 }
12
0
0
omr-ws-6492a5139feb4f7d83dad62312fc4ff6c1136236f3196e774a112082e0c317be
Three men and a monkey are shipwrecked on an island. They gather mangoes and put them in a pile. During the night, each man wakes up one by one, splits the pile into three equal parts with one mango left over (which is given to the monkey), hides one part, and combines the remaining two parts back into a pile. The next...
[ "79" ]
[ "Three men and a monkey are shipwrecked on an island. They gather mangoes and put them in a pile. During the night, each man wakes up one by one, splits the pile into three equal parts with one mango left over (which is given to the monkey), hides one part, and combines the remaining two parts back into a pile. The...
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-ff547a24e21aaa6fa7ad6dd5910b7910a8205e822a6f730557f40a9c6ac3b853
Three men are playing cards. In the first game, the first man loses to the other two men an amount equal to what each of them already owns. In the second game, the second man loses to the other two men an amount equal to what each of them already owns. In the third game, the first and second men each gain from the thir...
[ "First man had \\$39, Second man had \\$21, Third man had \\$12" ]
[ "Three men are playing cards. In the first game, the first man loses to the other two men an amount equal to what each of them already owns. In the second game, the second man loses to the other two men an amount equal to what each of them already owns. In the third game, the first and second men each gain from the...
[ "aops_c4_high_school_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-606c2b6a2a96b00dc94389707655e9bcfe0401221ef3b4f28996acd4e1457347
Three men, $A$, $B$, and $C$, walk in the same direction in the circumferences of three concentric circles, starting simultaneously from points where they are at their least distances from each other. $A$ walks his circuit in an even number of hours (greater than four), $B$ walks his circuit in one hour, and $C$ walks ...
[ "\\dfrac{1}{10}" ]
[ "Three men, $A$, $B$, and $C$, walk in the same direction in the circumferences of three concentric circles, starting simultaneously from points where they are at their least distances from each other. $A$ walks his circuit in an even number of hours (greater than four), $B$ walks his circuit in one hour, and $C$ w...
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 3 }
3
0
0
omr-ws-99c6bded40562555e075b53ef03ced4cbdd0365a4467556d466ed53bdfd4224b
Three men, Atkins, Brown, and Cranby, had to go a journey of forty miles. Atkins could walk one mile an hour, Brown could walk two miles an hour, and Cranby could go in his donkey cart at eight miles an hour. They start at the same time. Cranby drove Atkins a certain distance, and dropping him to walk the remainder, dr...
[ "\\dfrac{415}{41}" ]
[ "Three men, Atkins, Brown, and Cranby, had to go a journey of forty miles. Atkins could walk one mile an hour, Brown could walk two miles an hour, and Cranby could go in his donkey cart at eight miles an hour. They start at the same time. Cranby drove Atkins a certain distance, and dropping him to walk the remainde...
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 15 }
15
0
0
omr-ws-e9ffafc5ef507c2601202868ae02b3b5364afb6e55ef62234964db4a6130f3b7
Three monkeys randomly toss 12 ping pong balls numbered consecutively from 1 through 12 into three containers labeled A, B, and C. Each ball goes into one of the containers and is equally likely to end up in any one of the containers. Find the number of distinct outcomes in which all containers have the same number of ...
[ "34650" ]
[ "Three monkeys randomly toss 12 ping pong balls numbered consecutively from 1 through 12 into three containers labeled A, B, and C. Each ball goes into one of the containers and is equally likely to end up in any one of the containers. Find the number of distinct outcomes in which all containers have the same numbe...
[ "aops_c4_high_school_math", "c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 30 }
46
0
0
omr-ws-d274f3bd71dc098894c273d71320c7adc1dba5fba21576fe6d9ba000d1b67167
Three mothers each with their one child are called for an interview for admission of their child. The principal proposes to meet only one (either child or mother at a time). Find the probability that no child is called before her mother if the calling process is random.
[ "\\(\\frac{1}{8}\\)" ]
[ "Three mothers each with their one child are called for an interview for admission of their child. The principal proposes to meet only one (either child or mother at a time). Find the probability that no child is called before her mother if the calling process is random." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 30 }
46
0
0
omr-ws-f9e78f1881353d488067f7487bb4b37868b5e7c212d09e2873515967fda78ea1
Three motorcyclists started their rides at the same time and returned home at the same time. The first motorcyclist travelled twice as much as the second motorcyclist rested, the second motorcyclist travelled three times as much as the third motorcyclist rested, and the third motorcyclist travelled four times as much a...
[ "32" ]
[ "Three motorcyclists started their rides at the same time and returned home at the same time. The first motorcyclist travelled twice as much as the second motorcyclist rested, the second motorcyclist travelled three times as much as the third motorcyclist rested, and the third motorcyclist travelled four times as m...
[ "aops_c4_high_school_math" ]
[ "cot", "genselect" ]
{ "cot": 5, "genselect": 7 }
12
0
0
omr-ws-f5b8921bb10e937864041494d649464325f74812f4e5a9457de97d3382a367a1
Three movie critics are ranking \(2n+1\) movies, each giving marks from 0 to \(2n\). The sum of all marks given by the three critics for each movie is called the 'total marks' for that movie. Let \(S\) be the set of all distinct total marks for the movies. If each movie is more popular than exactly \(n\) other movies, ...
[ "3n(2n+1)" ]
[ "Three movie critics are ranking \\(2n+1\\) movies, each giving marks from 0 to \\(2n\\). The sum of all marks given by the three critics for each movie is called the 'total marks' for that movie. Let \\(S\\) be the set of all distinct total marks for the movies. If each movie is more popular than exactly \\(n\\) o...
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-4d0292786f938124832463039bec6dac45afb45666acc0e147c7b794d3d89050
Three mutually and externally disjoint circles centered at \(X_1\), \(X_2\), and \(X_3\) respectively are on the same plane. The two internal common tangents of Circle 2 and Circle 3, Circle 3 and Circle 1, and Circle 1 and Circle 2 meet at points \(P\), \(Q\), and \(R\) respectively. If the coordinates of \(X_1\), \(X...
[ "\\left( \\dfrac{32}{11}, \\dfrac{20}{11} \\right)" ]
[ "Three mutually and externally disjoint circles centered at \\(X_1\\), \\(X_2\\), and \\(X_3\\) respectively are on the same plane. The two internal common tangents of Circle 2 and Circle 3, Circle 3 and Circle 1, and Circle 1 and Circle 2 meet at points \\(P\\), \\(Q\\), and \\(R\\) respectively. If the coordinate...
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 5 }
5
0
0
omr-ws-295eca1367f2008e064180be44c618d59320b2f8e2a162bdc86b82bb3c5bc197
Three mutually distinct real numbers \(a, b, c\) satisfy the equations: \[ a = (b-2)c, \] \[ b = (c-2)a, \] \[ c = (a-2)b. \] Compute the product \(abc\).
[ "3" ]
[ "Three mutually distinct real numbers \\(a, b, c\\) satisfy the equations:\n\\[ a = (b-2)c, \\]\n\\[ b = (c-2)a, \\]\n\\[ c = (a-2)b. \\]\nCompute the product \\(abc\\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 10, "genselect": 7 }
17
0
0
omr-ws-b6f134b3cc48465ac654f2028683e1079bfb3f9fad2c21effcfc918f3c37a005
Three mutually perpendicular rays \(O_x, O_y, O_z\) and three points \(A, B, C\) on \(O_x, O_y, O_z\), respectively. A variable sphere through \(A, B, C\) meets \(O_x, O_y, O_z\) again at \(A', B', C'\), respectively. Let \(M\) and \(M'\) be the centroids of triangles \(ABC\) and \(A'B'C'\). Find the locus of the midpo...
[ "6ax - a^2 = 6by - b^2 = 6cz - c^2" ]
[ "Three mutually perpendicular rays \\(O_x, O_y, O_z\\) and three points \\(A, B, C\\) on \\(O_x, O_y, O_z\\), respectively. A variable sphere through \\(A, B, C\\) meets \\(O_x, O_y, O_z\\) again at \\(A', B', C'\\), respectively. Let \\(M\\) and \\(M'\\) be the centroids of triangles \\(ABC\\) and \\(A'B'C'\\). Fi...
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-c74ea55727c23dae39a1848801ac188335f4c2a3f910656051ed4cc420927857
Three mutually tangent spheres each with radius 5 sit on a horizontal plane. A triangular pyramid has a base that is an equilateral triangle with side length 6, has three congruent isosceles triangles for vertical faces, and has height 12. The base of the pyramid is parallel to the plane, and the vertex of the pyramid ...
[ "\\( m + n = 44 + 7 = 51 \\)." ]
[ "Three mutually tangent spheres each with radius 5 sit on a horizontal plane. A triangular pyramid has a base that is an equilateral triangle with side length 6, has three congruent isosceles triangles for vertical faces, and has height 12. The base of the pyramid is parallel to the plane, and the vertex of the pyr...
[ "aops_c4_high_school_math" ]
[ "cot", "genselect" ]
{ "cot": 4, "genselect": 7 }
11
0
0
omr-ws-2ebdf64f8be81baeb452a1b332323c481eccdf8be71a5a3ce37485ebed7ced17
Three mutually tangent spheres of radius 1 rest on a horizontal plane. Another sphere of radius 1 rests on top of them. What is the distance from the plane to the top of the upper sphere?
[ "\\(\\frac{2\\sqrt{6}}{3} + 2\\)" ]
[ "Three mutually tangent spheres of radius 1 rest on a horizontal plane. Another sphere of radius 1 rests on top of them. What is the distance from the plane to the top of the upper sphere?" ]
[ "aops_c5_contests_amp_programs" ]
[ "cot", "tir" ]
{ "cot": 48, "tir": 27 }
75
0
0
omr-ws-73a17ef06e76bcb1d1e584131703c91f22184c12969367da34f539d52adb91f3
Three mutually tangent spheres with radii of $1$ are tangent to a table, and a cone is tangent to all three spheres with its tip oriented towards the table. If the cone has height $\sqrt{2}$ and its tip is $\tfrac{3+\sqrt{3}}{3}$ units above the table, compute the radius of the cone.
[ "\\(\\sqrt{2} + \\sqrt{3}\\)" ]
[ "Three mutually tangent spheres with radii of $1$ are tangent to a table, and a cone is tangent to all three spheres with its tip oriented towards the table. If the cone has height $\\sqrt{2}$ and its tip is $\\tfrac{3+\\sqrt{3}}{3}$ units above the table, compute the radius of the cone." ]
[ "aops_c4_high_school_math" ]
[ "cot", "genselect", "tir" ]
{ "cot": 4, "genselect": 3, "tir": 2 }
9
0
0
omr-ws-1aeb282a92979965835355aca6fb27ee9b03276180b2847f48cdc43c420662a5
Three mutually tangent unit spheres (radius 1) are placed on a surface. A soccer ball of unknown radius is placed on top of them. The distance from the surface to the top of the soccer ball is in the form \( 8 + \frac{2 \sqrt{m}}{3} \) where \( m \) is not divisible by any perfect square greater than 1. What is the rem...
[ "3" ]
[ "Three mutually tangent unit spheres (radius 1) are placed on a surface. A soccer ball of unknown radius is placed on top of them. The distance from the surface to the top of the soccer ball is in the form \\( 8 + \\frac{2 \\sqrt{m}}{3} \\) where \\( m \\) is not divisible by any perfect square greater than 1. What...
[ "aops_c5_contests_amp_programs" ]
[ "cot", "genselect" ]
{ "cot": 5, "genselect": 8 }
13
0
0
omr-ws-f95cd47d3856b2284b3726762c9bc2cdabc45272150d3befbfff9e8141884d0b
Three natural numbers $a$, $b$, and $c$ are given such that each of them is divisible by the greatest common divisor of the remaining two and also divides the least common multiple of the remaining two. If $a \leq b \leq c$, find the value of $\frac{c}{a}$ when $a$, $b$, and $c$ are the smallest possible distinct numbe...
[ "no_valid_answer_found" ]
[ "Three natural numbers $a$, $b$, and $c$ are given such that each of them is divisible by the greatest common divisor of the remaining two and also divides the least common multiple of the remaining two. If $a \\leq b \\leq c$, find the value of $\\frac{c}{a}$ when $a$, $b$, and $c$ are the smallest possible distin...
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-cbe79596b5f91e21d233d88a63f532f6190b63485a3eb78ac5296071426b5137
Three natural numbers greater than or equal to $2$ are written, not necessarily different. A sequence is constructed using the following procedure: in each step, if the penultimate number written is $a$, the second-to-last one is $b$, and the last one is $c$, the next number $x$ is written such that $$x \cdot c = a + b...
[ "Any natural numbers greater than or equal to 2." ]
[ "Three natural numbers greater than or equal to $2$ are written, not necessarily different. A sequence is constructed using the following procedure: in each step, if the penultimate number written is $a$, the second-to-last one is $b$, and the last one is $c$, the next number $x$ is written such that $$x \\cdot c =...
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-93cae44dab2c3bb9f60c9863738aa4f914ac969a2c03c11c80dae3ddff651b7d
Three natural numbers that are consecutive members of an arithmetic progression were written on the board. After erasing the commas separating the numbers, a seven-digit number was formed. What is the largest possible seven-digit number that could result?
[ "9995049" ]
[ "Three natural numbers that are consecutive members of an arithmetic progression were written on the board. After erasing the commas separating the numbers, a seven-digit number was formed. What is the largest possible seven-digit number that could result?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "genselect", "tir" ]
{ "cot": 1, "genselect": 5, "tir": 1 }
7
0
0
omr-ws-86ff4369be893d01dbf6c2a0f82160f10931df4d9424315aaed8d8ed2cdb6211
Three non-collinear points \( A, B, C \) exist in the same plane with coordinates \( A = (1,1) \), \( B = (2,3) \), and \( C = (3,1) \). Point \( P \) internally divides \( AB \) in the ratio \( t : (1-t) \), and point \( Q \) internally divides \( BC \) in the same ratio \( t : (1-t) \). Point \( R \) divides \( PQ \)...
[ "The locus of \\( R \\) is a parabola given by the parametric equations \\( x = 2t + 1 \\) and \\( y = 3t + 1 - 4t^2 \\)." ]
[ "Three non-collinear points \\( A, B, C \\) exist in the same plane with coordinates \\( A = (1,1) \\), \\( B = (2,3) \\), and \\( C = (3,1) \\). Point \\( P \\) internally divides \\( AB \\) in the ratio \\( t : (1-t) \\), and point \\( Q \\) internally divides \\( BC \\) in the same ratio \\( t : (1-t) \\). Point...
[ "aops_c4_high_school_math" ]
[ "cot", "genselect", "tir" ]
{ "cot": 8, "genselect": 4, "tir": 14 }
26
0
0
omr-ws-164b624bdfb09b77e76407a49eb950c3ec53d1b1dc7d01184993cf637f7e5ad7
Three non-collinear points are randomly picked from the sides of a square such that they form a triangle. What is the probability that the circumcircle of the triangle has a greater area than the square?
[ "\\dfrac{1}{4}" ]
[ "Three non-collinear points are randomly picked from the sides of a square such that they form a triangle. What is the probability that the circumcircle of the triangle has a greater area than the square?" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 13 }
13
0
0
omr-ws-3bc374b4bab03fbe9b9cc920e75f42eabf8bc5889bae1c5ba8b8807b4905a255
Three non-coplanar circles are given in the Euclidean space so that they are pairwise tangent. Let $r_1$, $r_2$, and $r_3$ be the radii of these circles, and let $R$ be the radius of a sphere that passes through all three circles. If $r_1 = 2$, $r_2 = 3$, and $r_3 = 6$, find the value of $R$.
[ "12" ]
[ "Three non-coplanar circles are given in the Euclidean space so that they are pairwise tangent. Let $r_1$, $r_2$, and $r_3$ be the radii of these circles, and let $R$ be the radius of a sphere that passes through all three circles. If $r_1 = 2$, $r_2 = 3$, and $r_3 = 6$, find the value of $R$." ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-5601c2c60e1c6de7d136a06756362849e925b32b6c8e18f3199e545430839242
Three non-overlapping regular plane polygons, at least two of which are congruent, all have sides of length $1$. The polygons meet at a point $A$ in such a way that the sum of the three interior angles at $A$ is $360^\circ$. Thus, the three polygons form a new polygon with $A$ as an interior point. What is the largest ...
[ "21" ]
[ "Three non-overlapping regular plane polygons, at least two of which are congruent, all have sides of length $1$. The polygons meet at a point $A$ in such a way that the sum of the three interior angles at $A$ is $360^\\circ$. Thus, the three polygons form a new polygon with $A$ as an interior point. What is the la...
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 15, "tir": 2 }
17
0
0
omr-ws-109eee692903a2fc433fcf157f83260f04af13f9e27dccb639b767b903b076d5
Three non-overlapping regular plane polygons, at least two of which are congruent, all have sides of length $1$. The polygons meet at a point $A$ such that the sum of the three interior angles at $A$ is $360^{\circ}$. What is the largest possible perimeter of the new polygon formed with $A$ as an interior point?
[ "21" ]
[ "Three non-overlapping regular plane polygons, at least two of which are congruent, all have sides of length $1$. The polygons meet at a point $A$ such that the sum of the three interior angles at $A$ is $360^{\\circ}$. What is the largest possible perimeter of the new polygon formed with $A$ as an interior point?"...
[ "aops_c4_high_school_math" ]
[ "cot", "genselect" ]
{ "cot": 15, "genselect": 8 }
23
0
0
omr-ws-429386950704668102e07bc10a84a573f4d213c3d6761385618d9f0b440d28cb
Three non-overlapping regular plane polygons, at least two of which are congruent, all have sides of length 1. The polygons meet at a point \( A \) in such a way that the sum of the three interior angles at \( A \) is \( 360^\circ \). Thus, the three polygons form a new polygon with \( A \) as an interior point. What i...
[ "21" ]
[ "Three non-overlapping regular plane polygons, at least two of which are congruent, all have sides of length 1. The polygons meet at a point \\( A \\) in such a way that the sum of the three interior angles at \\( A \\) is \\( 360^\\circ \\). Thus, the three polygons form a new polygon with \\( A \\) as an interior...
[ "aops_c5_contests_amp_programs" ]
[ "cot", "genselect", "tir" ]
{ "cot": 15, "genselect": 8, "tir": 4 }
27
0
0
omr-ws-6abfdaca24b1aafaa63631e049f7ffa167bc5f66c76b4dfea0bfa06676f13154
Three non-overlapping regular plane polygons, at least two of which are congruent, all have sides of length 1. The polygons meet at point A such that the sum of the three interior angles at A is 360 degrees, forming a new polygon with A as an interior point. What is the largest possible perimeter of this new polygon?
[ "21" ]
[ "Three non-overlapping regular plane polygons, at least two of which are congruent, all have sides of length 1. The polygons meet at point A such that the sum of the three interior angles at A is 360 degrees, forming a new polygon with A as an interior point. What is the largest possible perimeter of this new polyg...
[ "aops_c4_high_school_math" ]
[ "cot", "genselect", "tir" ]
{ "cot": 14, "genselect": 8, "tir": 5 }
27
0
0
omr-ws-d6a5bbc5365ce1dbca805a7c91453d34dbe62688fbcef9d36868791a31e37a36
Three non-overlapping squares of integer side lengths each have one vertex at the origin and sides parallel to the coordinate axes. Together, the three squares enclose a region whose area is $41$. Compute the largest possible perimeter of the region.
[ "32" ]
[ "Three non-overlapping squares of integer side lengths each have one vertex at the origin and sides parallel to the coordinate axes. Together, the three squares enclose a region whose area is $41$. Compute the largest possible perimeter of the region." ]
[ "aops_c4_high_school_math" ]
[ "cot", "genselect", "tir" ]
{ "cot": 1, "genselect": 2, "tir": 3 }
6
0
0
omr-ws-bcc6f693a4625968ddc6103cfa294e14a016f7e66faba33d18cd9570af8a5677
Three non-zero real numbers \(a, b, c\) satisfy \(a + b + c = 0\) and \(a^4 + b^4 + c^4 = 128\). Determine all possible values of \(ab + bc + ca\).
[ "-8" ]
[ "Three non-zero real numbers \\(a, b, c\\) satisfy \\(a + b + c = 0\\) and \\(a^4 + b^4 + c^4 = 128\\). Determine all possible values of \\(ab + bc + ca\\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-f9219d7031ab7298753b461feaf66a6d5b3f5131666d04f38ad5d8e3b5438f81
Three nonnegative reals \( x, y, z \) satisfy \( x + y + z = 12 \) and \( xy + yz + zx = 21 \). Find the maximum value of \( xyz \).
[ "10" ]
[ "Three nonnegative reals \\( x, y, z \\) satisfy \\( x + y + z = 12 \\) and \\( xy + yz + zx = 21 \\). Find the maximum value of \\( xyz \\)." ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 3 }
19
0
0
omr-ws-2de6a70afa48596becd9bbd2137148c5ccd63f6d42ae459890584a9750f23cd9
Three nonnegative reals \( x, y, z \) satisfy \( x + y + z = 15 \) and \( xy + yz + zx = 28 \). Find the maximum of \( xyz \).
[ "\\dfrac{94\\sqrt{141} - 990}{9}" ]
[ "Three nonnegative reals \\( x, y, z \\) satisfy \\( x + y + z = 15 \\) and \\( xy + yz + zx = 28 \\). Find the maximum of \\( xyz \\)." ]
[ "aops_c4_high_school_math" ]
[ "cot", "genselect" ]
{ "cot": 14, "genselect": 8 }
22
0
0
omr-ws-aa606052dee6022e3b223c4e7ca84862a303384599240fcfa140c8534fb4acad
Three nonnegative reals \(x, y, z\) satisfy \(x + y + z = 12\) and \(xy + yz + zx = 21\). Find the maximum of \(xyz\).
[ "10" ]
[ "Three nonnegative reals \\(x, y, z\\) satisfy \\(x + y + z = 12\\) and \\(xy + yz + zx = 21\\). Find the maximum of \\(xyz\\)." ]
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-bd063cf892a68662ba13f2d56aa3b5a8fd26848bc7ec1d6593ae503df05cf7dd
Three nonzero real numbers form an arithmetic progression and the squares of these numbers taken in the same order constitute a geometric progression. Find all possible common ratios of the geometric progression.
[ "$3-2\\sqrt 2$, 1, $3+2\\sqrt 2$" ]
[ "Three nonzero real numbers form an arithmetic progression and the squares of these numbers taken in the same order constitute a geometric progression. Find all possible common ratios of the geometric progression." ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-abe0e01e47b5afb4b0825b87397b7799e5186a7f77e0a9fa25e78c064760068a
Three normal dice are piled on top of each other so that the total number of pips on two faces placed together is always 5. One of the visible faces on the bottom die has one pip. How many pips are on the top face of the top die?
[ "6" ]
[ "Three normal dice are piled on top of each other so that the total number of pips on two faces placed together is always 5. One of the visible faces on the bottom die has one pip. How many pips are on the top face of the top die?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "genselect" ]
{ "cot": 31, "genselect": 7 }
38
0
0
omr-ws-f0fbabdb1b077b566a435114c34bb9a7061fd620d0c47fe6f085585c27deda05
Three normals are drawn to the parabola $y^2 = 4ax\cos\alpha$ from any point on the line $y = b\sin\alpha$. Find the locus of the orthocenter of the triangle formed by the corresponding tangents at the points of contact of the normals.
[ "\\dfrac{x^2}{a^2} + \\dfrac{y^2}{b^2} = 1" ]
[ "Three normals are drawn to the parabola $y^2 = 4ax\\cos\\alpha$ from any point on the line $y = b\\sin\\alpha$. Find the locus of the orthocenter of the triangle formed by the corresponding tangents at the points of contact of the normals." ]
[ "aops_c4_high_school_math" ]
[ "cot", "genselect" ]
{ "cot": 12, "genselect": 3 }
15
0
0
omr-ws-799c5c607d821de7932c926a3fc85f20d9813f19584b521fd386b4727782f23b
Three numbers $a, b, c$ are generated uniformly in the interval $[0, 1]$. What is the probability that the line with equation $a x + b y = c$ intersects the unit circle $x^2 + y^2 = 1$?
[ "1 - \\dfrac{\\pi}{12}" ]
[ "Three numbers $a, b, c$ are generated uniformly in the interval $[0, 1]$. What is the probability that the line with equation $a x + b y = c$ intersects the unit circle $x^2 + y^2 = 1$?" ]
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-1f613647bac279ee4d5f2852ed545d15fbb1e12fbfd96dc2aaff36ff6f7c81c5
Three numbers $a_1, a_2, a_3$ are drawn randomly and without replacement from the set $\{1, 2, 3, \dots, 1000\}$. Three other numbers $b_1, b_2, b_3$ are then drawn randomly and without replacement from the remaining set of 997 numbers. Compute the probability that, after a suitable rotation, a brick of dimensions $a_1...
[ "\\(\\frac{1}{4}\\)" ]
[ "Three numbers $a_1, a_2, a_3$ are drawn randomly and without replacement from the set $\\{1, 2, 3, \\dots, 1000\\}$. Three other numbers $b_1, b_2, b_3$ are then drawn randomly and without replacement from the remaining set of 997 numbers. Compute the probability that, after a suitable rotation, a brick of dimensi...
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 29 }
45
0
0
omr-ws-59cd94ac80b4bcb1e23ad824c6827b34de6e3b055d5fc858ad3b242b6d3e0a07
Three numbers $x, y, z$ are selected at random, with replacement, from the set $\{-3,-2,-1, 1, 2, 3\}$. What is the probability that all three of the numbers $\frac{x}{y},\frac{y}{z},\frac{2z}{x}$ are integers?
[ "\\dfrac{5}{27}" ]
[ "Three numbers $x, y, z$ are selected at random, with replacement, from the set $\\{-3,-2,-1, 1, 2, 3\\}$. What is the probability that all three of the numbers $\\frac{x}{y},\\frac{y}{z},\\frac{2z}{x}$ are integers?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "genselect" ]
{ "cot": 15, "genselect": 8 }
23
0
0
omr-ws-17745e47e3878cf7a0df706527603e85b9aea4eddf7695402ef649b87b01e0f2
Three numbers \( N, n, r \) are such that the digits of \( N, n, r \) taken together are formed by \( 1, 2, 3, 4, 5, 6, 7, 8, 9 \) without repetition. If \( N = n^2 - r \), find all possible combinations of \( N, n, r \).
[ "\\( N = 1397, n = 45, r = 628 \\)" ]
[ "Three numbers \\( N, n, r \\) are such that the digits of \\( N, n, r \\) taken together are formed by \\( 1, 2, 3, 4, 5, 6, 7, 8, 9 \\) without repetition. If \\( N = n^2 - r \\), find all possible combinations of \\( N, n, r \\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "tir" ]
{ "tir": 1 }
1
0
0
omr-ws-26c281f94cac31557724fce153466edf98ac93198d0a43222856f3fffc41217f
Three numbers \( x, y, \) and \( z \) are chosen randomly from the range \([0, 2021]\). What is the probability that the square of one of the numbers is greater than the sum of the squares of the other two numbers?
[ "\\(\\frac{\\pi}{4}\\)" ]
[ "Three numbers \\( x, y, \\) and \\( z \\) are chosen randomly from the range \\([0, 2021]\\). What is the probability that the square of one of the numbers is greater than the sum of the squares of the other two numbers?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 25 }
41
0
0
omr-ws-adcdbb9cf627145c3d057dde177819ab6ab85c1e4c3d2d7845f423f337448ad8
Three numbers \( x, y, z \in \mathbb{N} \) are chosen at random such that \( 1 \le x, y, z \le 10 \). What is the probability that their product is divisible by 9?
[ "\\(\\frac{363}{1000}\\)" ]
[ "Three numbers \\( x, y, z \\in \\mathbb{N} \\) are chosen at random such that \\( 1 \\le x, y, z \\le 10 \\). What is the probability that their product is divisible by 9?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 15, "tir": 26 }
41
0
0
omr-ws-c6424cdb9f73a9627333068f08e3ed46a692c0be61ffe29bd4fbccdfd11e2209
Three numbers \( x_1, x_2, x_3 \) are chosen from the set \(\{1, 2, \ldots, 2000\}\) and removed without replacement. Then three numbers \( y_1, y_2, y_3 \) are chosen. What is the probability that \( y_i > x_i \) for all \( i \)?
[ "\\dfrac{1}{8}" ]
[ "Three numbers \\( x_1, x_2, x_3 \\) are chosen from the set \\(\\{1, 2, \\ldots, 2000\\}\\) and removed without replacement. Then three numbers \\( y_1, y_2, y_3 \\) are chosen. What is the probability that \\( y_i > x_i \\) for all \\( i \\)?" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 7, "genselect": 2 }
9
0
0
omr-ws-73738ffc5bf37d13f8e0261648a10027d4f8e434e92f6c978c12605ead69ebb3
Three numbers \(a < b < c\) are chosen from the set \(\{1, 18, 27, 44, 67, 87, 98, 103, 312\}\). What is the expected value of \(2a + 9b - c\)?
[ "\\dfrac{9670}{21}" ]
[ "Three numbers \\(a < b < c\\) are chosen from the set \\(\\{1, 18, 27, 44, 67, 87, 98, 103, 312\\}\\). What is the expected value of \\(2a + 9b - c\\)?" ]
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-5a597776233339d3db11ef58f018ca2ec5ccc57f1b656526a97c0a1d390a1913
Three numbers \(a, b, c\), none zero, form an arithmetic progression. Increasing \(a\) by 1 or increasing \(c\) by 2 results in a geometric progression. Then \(b\) equals:
[ "12" ]
[ "Three numbers \\(a, b, c\\), none zero, form an arithmetic progression. Increasing \\(a\\) by 1 or increasing \\(c\\) by 2 results in a geometric progression. Then \\(b\\) equals:" ]
[ "aops_c5_contests_amp_programs" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-71a0633ce6abe6f981e15940e5db6d20ec77f684f75343f9e418a9ee9bf76d87
Three numbers \(a\), \(b\), and \(c\) are chosen uniformly and independently at random from the interval \([0,1]\) and arranged such that \(a \leq b \leq c\). What is the probability that \(4a + 3b + 2c \leq 1\)?
[ "\\dfrac{1}{90}" ]
[ "Three numbers \\(a\\), \\(b\\), and \\(c\\) are chosen uniformly and independently at random from the interval \\([0,1]\\) and arranged such that \\(a \\leq b \\leq c\\). What is the probability that \\(4a + 3b + 2c \\leq 1\\)?" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-edd5be7f6aee8220b4322498f3d4f89b41bdb56dcb250676cc32c6863a5ea347
Three numbers \(a\), \(b\), and \(c\) are in arithmetic progression (AP). A 9-digit number is formed using each of these digits exactly three times, such that at least three consecutive digits are in AP. Find the number of such 9-digit numbers.
[ "1668" ]
[ "Three numbers \\(a\\), \\(b\\), and \\(c\\) are in arithmetic progression (AP). A 9-digit number is formed using each of these digits exactly three times, such that at least three consecutive digits are in AP. Find the number of such 9-digit numbers." ]
[ "aops_c4_high_school_math" ]
[ "cot", "genselect" ]
{ "cot": 2, "genselect": 3 }
5
0
0
omr-ws-e4940c5188d431e5b1af3b0792aebd644e8911a92c19503e4231d49c7758f682
Three numbers \(a\), \(b\), and \(c\) are selected from the interval \([0, 1]\) with \(a \ge b \ge c\). Find the probability that \(4a + 3b + 2c \ge 1\).
[ "\\(\\frac{251}{252}\\)" ]
[ "Three numbers \\(a\\), \\(b\\), and \\(c\\) are selected from the interval \\([0, 1]\\) with \\(a \\ge b \\ge c\\). Find the probability that \\(4a + 3b + 2c \\ge 1\\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect", "tir" ]
{ "cot": 9, "genselect": 6, "tir": 14 }
29
0
0
omr-ws-30a678878124fe3c99e7b1262ffb890689790f49d05b42703dbb49b7216c04c3
Three numbers \(a\), \(b\), and \(c\) satisfy the equations \(ab + c = 10\), \(bc + a = 11\), and \(ca + b = 14\). Find the value of \((a - b)(b - c)(c - a)(a - 1)(b - 1)(c - 1)\).
[ "-12" ]
[ "Three numbers \\(a\\), \\(b\\), and \\(c\\) satisfy the equations \\(ab + c = 10\\), \\(bc + a = 11\\), and \\(ca + b = 14\\). Find the value of \\((a - b)(b - c)(c - a)(a - 1)(b - 1)(c - 1)\\)." ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 15, "tir": 7 }
22
0
0
omr-ws-6324abf466340a3088b84844a94ffbf40d10fd288ed299bc2b33147c3e8f79c2
Three numbers \(a\), \(b\), and \(c\), none of them zero, form an arithmetic progression. Increasing \(a\) by 1 or increasing \(c\) by 2 results in a geometric progression. Find the value of \(b\).
[ "12" ]
[ "Three numbers \\(a\\), \\(b\\), and \\(c\\), none of them zero, form an arithmetic progression. Increasing \\(a\\) by 1 or increasing \\(c\\) by 2 results in a geometric progression. Find the value of \\(b\\)." ]
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-9ceea6674d231833dee3f9e4e4480e23aed998c2794c53cbc258514290fc7723
Three numbers \(a\), \(b\), and \(c\), none zero, form an arithmetic progression. Increasing \(a\) by 1 or increasing \(c\) by 2 results in a geometric progression. Find \(b\).
[ "12" ]
[ "Three numbers \\(a\\), \\(b\\), and \\(c\\), none zero, form an arithmetic progression. Increasing \\(a\\) by 1 or increasing \\(c\\) by 2 results in a geometric progression. Find \\(b\\)." ]
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-09dc293d0503109cd7a8b67fb39414d6e404471ed92ea3a1ee4253e623bfd0df
Three numbers \(a_1, a_2, a_3\) are drawn at random, without replacement, from the set \(\{1, 2, 3, \ldots, 1000\}\). Three other numbers \(b_1, b_2, b_3\) are then drawn randomly and without replacement from the remaining set of 997 numbers. Find the probability that a brick with dimensions \(a_1 \times a_2 \times a_3...
[ "\\(\\frac{1}{4}\\)" ]
[ "Three numbers \\(a_1, a_2, a_3\\) are drawn at random, without replacement, from the set \\(\\{1, 2, 3, \\ldots, 1000\\}\\). Three other numbers \\(b_1, b_2, b_3\\) are then drawn randomly and without replacement from the remaining set of 997 numbers. Find the probability that a brick with dimensions \\(a_1 \\time...
[ "aops_c5_contests_amp_programs" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 29 }
45
0
0
omr-ws-cd68cdbe3d50a73203644fc5be67a615d73c77a011dc287f133907d5f4f35b2c
Three numbers \(a_1, a_2, a_3\) are drawn randomly and without replacement from the set \(\{1, 2, 3, \ldots, 1000\}\). Three other numbers \(b_1, b_2, b_3\) are then drawn randomly and without replacement from the remaining set of 997 numbers. Let \(P\) be the probability that, after suitable rotation, a brick of dimen...
[ "5" ]
[ "Three numbers \\(a_1, a_2, a_3\\) are drawn randomly and without replacement from the set \\(\\{1, 2, 3, \\ldots, 1000\\}\\). Three other numbers \\(b_1, b_2, b_3\\) are then drawn randomly and without replacement from the remaining set of 997 numbers. Let \\(P\\) be the probability that, after suitable rotation, ...
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-575070d43cdba3b2511d108071cecbf0bf4f4e67ea4712ef6dd249b1ec99c4cf
Three numbers \(a_1, a_2, a_3\) are drawn randomly and without replacement from the set \(\{1, 2, 3, \ldots, 1000\}\). Three other numbers \(b_1, b_2, b_3\) are then drawn randomly and without replacement from the remaining set of 997 numbers. Let \(p\) be the probability that, after a suitable rotation, a brick of dim...
[ "5\n\nExplanation: The probability \\( p \\) is found to be \\( \\frac{1}{4} \\). When written as a fraction in lowest terms, the numerator is 1 and the denominator is 4. The sum of the numerator and denominator is \\( 1 + 4 = 5 \\)." ]
[ "Three numbers \\(a_1, a_2, a_3\\) are drawn randomly and without replacement from the set \\(\\{1, 2, 3, \\ldots, 1000\\}\\). Three other numbers \\(b_1, b_2, b_3\\) are then drawn randomly and without replacement from the remaining set of 997 numbers. Let \\(p\\) be the probability that, after a suitable rotation...
[ "aops_c5_contests_amp_programs" ]
[ "cot" ]
{ "cot": 43 }
43
0
0
omr-ws-2bb3aa722e25516bab00d478f993f0b8774ffd8dbc1fbcf948c9ac8cbfc5244d
Three numbers \(a_1\), \(a_2\), and \(a_3\) are chosen without replacement from the set \(\{1, 2, 3, \ldots, 99, 100\}\). Three other numbers \(b_1\), \(b_2\), and \(b_3\) are chosen without replacement from the remaining 97 numbers. What is the probability that after some rotations, a brick with dimensions \(a_1 \time...
[ "\\dfrac{1}{4}" ]
[ "Three numbers \\(a_1\\), \\(a_2\\), and \\(a_3\\) are chosen without replacement from the set \\(\\{1, 2, 3, \\ldots, 99, 100\\}\\). Three other numbers \\(b_1\\), \\(b_2\\), and \\(b_3\\) are chosen without replacement from the remaining 97 numbers. What is the probability that after some rotations, a brick with ...
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-71017471f9dddb3e86253152c7118c90778968a785f3442c87b51eca39507229
Three numbers are chosen at random between $0$ and $1$. What is the probability that the difference between the greatest and the least is less than $\frac{1}{3}$?
[ "\\dfrac{7}{27}" ]
[ "Three numbers are chosen at random between $0$ and $1$. What is the probability that the difference between the greatest and the least is less than $\\frac{1}{3}$?" ]
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-ffbeef53cefb8c6d598ac60ccc80114d068db01665a38b3edbe9720a67a66ebf
Three numbers are chosen at random between $0$ and $1$. What is the probability that the greatest minus the least is less than $\frac{1}{3}$?
[ "\\(\\frac{7}{27}\\)" ]
[ "Three numbers are chosen at random between $0$ and $1$. What is the probability that the greatest minus the least is less than $\\frac{1}{3}$?" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 31 }
47
0
0
omr-ws-5aa190693b48043e6c8d40fb44f318a8ffc3895add1622525c096c842fc66d4d
Three numbers are chosen at random between $0$ and $2$. What is the probability that the difference between the greatest and least number is less than $\frac{1}{4}$?
[ "\\dfrac{11}{256}" ]
[ "Three numbers are chosen at random between $0$ and $2$. What is the probability that the difference between the greatest and least number is less than $\\frac{1}{4}$?" ]
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 15 }
15
0
0
omr-ws-efab6b07468fe6bdfe4ec60eb56909f2f8f3840eb6cc2888857bec168c0f41b4
Three numbers are chosen at random between 0 and 1. What is the probability that the difference between the greatest and the least is less than 1/3?
[ "\\dfrac{7}{27}" ]
[ "Three numbers are chosen at random between 0 and 1. What is the probability that the difference between the greatest and the least is less than 1/3?" ]
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-8106438063cbbe54dcd6ae10ef23669fd657eb81560953ea8a97982a959bc34c
Three numbers are chosen at random between 0 and 1. What is the probability that the difference between the greatest and the least is less than \( \frac{1}{3} \)?
[ "\\dfrac{7}{27}" ]
[ "Three numbers are chosen at random between 0 and 1. What is the probability that the difference between the greatest and the least is less than \\( \\frac{1}{3} \\)?" ]
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-3c2f415d42a11a1e44ee8777c63baf022b7772d0a6006b72d798fbfc71d68a63
Three numbers are chosen at random between 0 and 1. What is the probability that the difference between the greatest and the least of these numbers is less than $\frac{1}{3}$?
[ "\\(\\frac{7}{27}\\)" ]
[ "Three numbers are chosen at random between 0 and 1. What is the probability that the difference between the greatest and the least of these numbers is less than $\\frac{1}{3}$?" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 28 }
44
0
0
omr-ws-29da03fa6b336c3f3723bbe110c22d93e3b188e6e174c905e148d6120d38f48d
Three numbers are chosen at random between 0 and 1. What is the probability that the difference between the greatest and the least of these numbers is less than 1/3?
[ "7/27", "\\(\\frac{7}{27}\\)" ]
[ "Three numbers are chosen at random between 0 and 1. What is the probability that the difference between the greatest and the least of these numbers is less than 1/3?" ]
[ "aops_c4_high_school_math", "aops_c6_high_school_olympiads" ]
[ "cot", "tir" ]
{ "cot": 62, "tir": 61 }
123
0
0
omr-ws-e4eae85d76652dedd493f8c4279f3f7b5e9bdd23bc62f297e0110b4dda8a67c2
Three numbers are chosen at random between 0 and 1. What is the probability that the difference between the greatest and the least of these numbers is less than one third?
[ "\\(\\frac{7}{27}\\)" ]
[ "Three numbers are chosen at random between 0 and 1. What is the probability that the difference between the greatest and the least of these numbers is less than one third?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 32 }
48
0
0
omr-ws-af761af4b9f01a434e77a85cefc49011458592f2e8f10df12b2368f69b510f2f
Three numbers are chosen at random between 0 and 1. What is the probability that the difference between the greatest and the smallest of these numbers is less than 1/3?
[ "\\dfrac{7}{27}" ]
[ "Three numbers are chosen at random between 0 and 1. What is the probability that the difference between the greatest and the smallest of these numbers is less than 1/3?" ]
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-04ce51cd18365b74754da80cee4798a979e26a369bfeaf755f7d63217900cfa2
Three numbers are chosen at random between 0 and 2. What is the probability that the difference between the greatest and the least of these numbers is less than 1/4?
[ "\\(\\frac{11}{256}\\)" ]
[ "Three numbers are chosen at random between 0 and 2. What is the probability that the difference between the greatest and the least of these numbers is less than 1/4?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 13, "tir": 27 }
40
0
0
omr-ws-ab15b8f64b9e41e30e31356275f4c9d0d4314016785f8b7d370122d0372c956b
Three numbers are chosen at random between \(0\) and \(2\). What is the probability that the difference between the greatest and least is less than \(1/4\)?
[ "\\dfrac{11}{256}" ]
[ "Three numbers are chosen at random between \\(0\\) and \\(2\\). What is the probability that the difference between the greatest and least is less than \\(1/4\\)?" ]
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-01767fa1b2d3119504a347b5faaad5b08d9671932a47430c40a55a5ba49292f4
Three numbers are chosen at random from the set $\{0, 1, 2, \ldots, 29\}$ without replacement. What is the probability that the sum of these numbers is $30$?
[ "$\\frac{15}{812}$" ]
[ "Three numbers are chosen at random from the set $\\{0, 1, 2, \\ldots, 29\\}$ without replacement. What is the probability that the sum of these numbers is $30$?" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 27 }
43
0
0
omr-ws-807af6dc1907f08f213991a34066d36af9f5a1a29a55bf6eb720cc066e487bf8
Three numbers are chosen at random in the interval \((0, 1)\). What is the probability that the difference between the least and greatest numbers (the numbers can be the same) is less than \(\frac{1}{3}\)?
[ "\\dfrac{7}{27}" ]
[ "Three numbers are chosen at random in the interval \\((0, 1)\\). What is the probability that the difference between the least and greatest numbers (the numbers can be the same) is less than \\(\\frac{1}{3}\\)?" ]
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 14 }
14
0
0
omr-ws-81ef7b1e7a04f874afb6480f8093d602571c11c7160d7ef39d0490a8b7ccf855
Three numbers are chosen independently at random, one from each of the three intervals $[0, L_1]$, $[0, L_2]$, and $[0, L_3]$. If the distribution of each random number is uniform with respect to the length of the interval it is chosen from, determine the expected value of the smallest number chosen.
[ "\\int_{0}^{\\min(L_1, L_2, L_3)} \\left(1 - \\frac{x}{L_1}\\right)\\left(1 - \\frac{x}{L_2}\\right)\\left(1 - \\frac{x}{L_3}\\right) \\, dx" ]
[ "Three numbers are chosen independently at random, one from each of the three intervals $[0, L_1]$, $[0, L_2]$, and $[0, L_3]$. If the distribution of each random number is uniform with respect to the length of the interval it is chosen from, determine the expected value of the smallest number chosen." ]
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 5 }
5
0
0
omr-ws-599ca75eb7a39b7dee79b9cdeaccef30cc8353267d9132578e4fe89cf134285e
Three numbers are chosen randomly from the set $\{1, 3, 3^2, \ldots, 3^n\}$ without replacement. Let $P(n)$ be the probability that these three numbers form an increasing geometric progression. Calculate $P(9) + P(10)$.
[ "\\dfrac{7}{22}" ]
[ "Three numbers are chosen randomly from the set $\\{1, 3, 3^2, \\ldots, 3^n\\}$ without replacement. Let $P(n)$ be the probability that these three numbers form an increasing geometric progression. Calculate $P(9) + P(10)$." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-85871eef5aab12643de4f79b661d9068d1014dfdd95cfdf5ed3bff51fd90e419
Three numbers are chosen, each between 0 and 2. What is the probability that the sum of the numbers is between 2 and 3?
[ "\\dfrac{1}{3}" ]
[ "Three numbers are chosen, each between 0 and 2. What is the probability that the sum of the numbers is between 2 and 3?" ]
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 15 }
15
0
0
omr-ws-f30886021c02fca1ac1b8c4f5461d0be732ea606e48cd63c6248e19146eb5d42
Three numbers are in arithmetic progression and their sum is $k$ (where $k \in \mathbb{R}$). If the first number remains the same and $\frac{k}{6}$ is added to the third number, the resulting sequence forms a geometric progression. Find the three numbers.
[ "\\(\\left(\\frac{k}{6}, \\frac{k}{3}, \\frac{k}{2}\\right)\\) or \\(\\left(\\frac{2k}{3}, \\frac{k}{3}, 0\\right)\\)" ]
[ "Three numbers are in arithmetic progression and their sum is $k$ (where $k \\in \\mathbb{R}$). If the first number remains the same and $\\frac{k}{6}$ is added to the third number, the resulting sequence forms a geometric progression. Find the three numbers." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "tir" ]
{ "cot": 44, "tir": 14 }
58
0
0
omr-ws-d8316b51ae4e969f2bbe06b860d477d75f8597d29390357373c931d8efaac0d9
Three numbers are selected at random without replacement from the set \(\{1, 2, 3, \ldots, n\}\). Find the conditional probability that the third number lies between the first two, given that the first number is known to be less than the second.
[ "\\(\\frac{1}{3}\\)" ]
[ "Three numbers are selected at random without replacement from the set \\(\\{1, 2, 3, \\ldots, n\\}\\). Find the conditional probability that the third number lies between the first two, given that the first number is known to be less than the second." ]
[ "aops_c7_college_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 21 }
37
0
0
omr-ws-1bbb759efcaec80391898aadcc1bedaf8acec7f9a972523ed67adba43da20e64
Three numbers are selected from the set \(\{1, 2, \ldots, 100\}\). What is the probability that the sum of the selected numbers is divisible by 3?
[ "\\(\\frac{817}{2450}\\)" ]
[ "Three numbers are selected from the set \\(\\{1, 2, \\ldots, 100\\}\\). What is the probability that the sum of the selected numbers is divisible by 3?" ]
[ "aops_c4_high_school_math", "c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 15, "tir": 26 }
41
0
0
omr-ws-a55797cf80b40dc6e553b59362ccd530f65c91e2947b2bc5ac832db722cf5cdc
Three numbers form a geometric progression. If the third term is decreased by 64, then the three numbers thus obtained will constitute an arithmetic progression. If then the second term of this arithmetic progression is decreased by 8, a geometric progression will be formed again. Determine these numbers.
[ "(1) $\\frac{4}{9};\\frac{52}{9};\\frac{676}{9}$, (2) $4;20;100$" ]
[ "Three numbers form a geometric progression. If the third term is decreased by 64, then the three numbers thus obtained will constitute an arithmetic progression. If then the second term of this arithmetic progression is decreased by 8, a geometric progression will be formed again. Determine these numbers." ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-dc6a18b679da4683a2dc336263e1c97f8aa15440baf6dedc3e4e14526b6e47ee
Three numbers form a geometric progression. The sum of these numbers is equal to 126, and their product, to 13,824. Find these numbers.
[ "$6;24;96$" ]
[ "Three numbers form a geometric progression. The sum of these numbers is equal to 126, and their product, to 13,824. Find these numbers." ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-2e4a02761a863cf83fbd3efb52e1b5ffae918ca014ded38d1ca1f5cd096e4d63
Three numbers form an arithmetic sequence with a common difference of $11$. If the first number is decreased by $6$, the second is decreased by $1$, and the third is doubled, the resulting numbers are in geometric sequence. Determine the original numbers which form the arithmetic sequence.
[ "\\(14, 25, 36\\) or \\(-26, -15, -4\\)." ]
[ "Three numbers form an arithmetic sequence with a common difference of $11$. If the first number is decreased by $6$, the second is decreased by $1$, and the third is doubled, the resulting numbers are in geometric sequence. Determine the original numbers which form the arithmetic sequence." ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 7, "tir": 23 }
30
0
0
omr-ws-b334b75eb4b3a56b458f8e9adaf650f7d6a4dbc703a98caa00c5305768b133b6
Three numbers form an arithmetic sequence with a common difference of 11. If the first number is decreased by 6, the second number is decreased by 1, and the third number is doubled, the resulting numbers form a geometric sequence. Determine the original three numbers in the arithmetic sequence.
[ "\\(14, 25, 36\\) or \\(-26, -15, -4\\)" ]
[ "Three numbers form an arithmetic sequence with a common difference of 11. If the first number is decreased by 6, the second number is decreased by 1, and the third number is doubled, the resulting numbers form a geometric sequence. Determine the original three numbers in the arithmetic sequence." ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 9, "tir": 20 }
29
0
0
omr-ws-fac6e4f5642d71ceb8b67b42cc87eeeb8061c190b0913f960fbfd36d3e276591
Three numbers form an arithmetic sequence. If we add 8 to the first number, the resulting sequence becomes a geometric sequence with a sum of 26. Find the original three numbers.
[ "\\((10, 6, 2)\\) or \\((-6, 6, 18)\\)" ]
[ "Three numbers form an arithmetic sequence. If we add 8 to the first number, the resulting sequence becomes a geometric sequence with a sum of 26. Find the original three numbers." ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 1, "tir": 11 }
12
0
0
omr-ws-bbca46f22af4638631723a855743d6eb86ea4a34de9a8544dae7b012c23b4025
Three numbers in the interval [0,1] are chosen independently and at random. What is the probability that the chosen numbers are the side lengths of a triangle with positive area?
[ "\\(\\frac{1}{2}\\)" ]
[ "Three numbers in the interval [0,1] are chosen independently and at random. What is the probability that the chosen numbers are the side lengths of a triangle with positive area?" ]
[ "aops_c4_high_school_math", "aops_c5_contests_amp_programs" ]
[ "cot", "tir" ]
{ "cot": 31, "tir": 58 }
89
0
0
omr-ws-ce4a717a548c47651fe2f5837345b653e5b6324ddccee63b19bce205ccde0f49
Three numbers in the interval \([0,1]\) are chosen independently and at random. What is the probability that the chosen numbers are the side lengths of a triangle with positive area?
[ "\\(\\frac{1}{2}\\)" ]
[ "Three numbers in the interval \\([0,1]\\) are chosen independently and at random. What is the probability that the chosen numbers are the side lengths of a triangle with positive area?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 26 }
42
0
0
omr-ws-74fedb799bb7a413ca2aff4ee387dff5260fefcd888999bfc96cab565d0974e5
Three numbers the third of which is 12 are three successive terms of a geometric progression. If we take 9 instead of 12, then the three numbers become three successive terms of an arithmetic progression. Find the numbers.
[ "$(3,6,12);\\ (27,18,12)$" ]
[ "Three numbers the third of which is 12 are three successive terms of a geometric progression. If we take 9 instead of 12, then the three numbers become three successive terms of an arithmetic progression. Find the numbers." ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-cbf4ff0fb391c7f3c1cfc38346184b71e4d1f0cdf12009c2e303afa31de11047
Three numbers, $a_1$, $a_2$, $a_3$, are drawn randomly and without replacement from the set $\{1, 2, 3, \dots, 1000\}$. Three other numbers, $b_1$, $b_2$, $b_3$, are then drawn randomly and without replacement from the remaining set of 997 numbers. Let $p$ be the probability that, after a suitable rotation, a brick of ...
[ "5", "5\n\nExplanation: The probability \\( p \\) is \\(\\frac{1}{4}\\). When written as a fraction in lowest terms, the sum of the numerator and denominator is \\( 1 + 4 = 5 \\)." ]
[ "Three numbers, $a_1$, $a_2$, $a_3$, are drawn randomly and without replacement from the set $\\{1, 2, 3, \\dots, 1000\\}$. Three other numbers, $b_1$, $b_2$, $b_3$, are then drawn randomly and without replacement from the remaining set of 997 numbers. Let $p$ be the probability that, after a suitable rotation, a b...
[ "aops_c4_high_school_math" ]
[ "cot", "genselect" ]
{ "cot": 31, "genselect": 8 }
39
0
0
omr-ws-84369a2fb4aab1a2b0aab1ebc6d77050286cfe9e25f76e894362bc4a757755a2
Three numbers, $a_1, a_2, a_3$, are drawn randomly and without replacement from the set $\{1, 2, 3,\ldots, 1000\}$. Three other numbers, $b_1, b_2, b_3$, are then drawn randomly and without replacement from the remaining set of $997$ numbers. Let $p$ be the probability that, after suitable rotation, a brick of dimensio...
[ "005" ]
[ "Three numbers, $a_1, a_2, a_3$, are drawn randomly and without replacement from the set $\\{1, 2, 3,\\ldots, 1000\\}$. Three other numbers, $b_1, b_2, b_3$, are then drawn randomly and without replacement from the remaining set of $997$ numbers. Let $p$ be the probability that, after suitable rotation, a brick of ...
[ "MATH_training_set" ]
[ "cot" ]
{ "cot": 48 }
48
0
0
omr-ws-a2be2c7ea31565da107f980f73a8a3e12f60f12351606f106c7d9b7481cac3cd
Three numbers, $a_1\,$, $a_2\,$, $a_3\,$, are drawn randomly and without replacement from the set $\{1, 2, 3, \dots, 1000\}\,$. Three other numbers, $b_1\,$, $b_2\,$, $b_3\,$, are then drawn randomly and without replacement from the remaining set of 997 numbers. Let $p\,$ be the probability that, after a suitable rotat...
[ "5" ]
[ "Three numbers, $a_1\\,$, $a_2\\,$, $a_3\\,$, are drawn randomly and without replacement from the set $\\{1, 2, 3, \\dots, 1000\\}\\,$. Three other numbers, $b_1\\,$, $b_2\\,$, $b_3\\,$, are then drawn randomly and without replacement from the remaining set of 997 numbers. Let $p\\,$ be the probability that, after ...
[ "MATH_training_set" ]
[ "cot", "genselect" ]
{ "cot": 15, "genselect": 8 }
23
0
0
omr-ws-2fecca5f766fbad1fb9ae679a297fa78c1db92103915e42fbc52f482ba1f6334
Three numbers, $x$, $y$, and $z$, are chosen at random between $0$ and $2$. What is the probability that the difference between the greatest and the least of these numbers is less than $\frac{1}{4}$?
[ "\\(\\frac{11}{256}\\)" ]
[ "Three numbers, $x$, $y$, and $z$, are chosen at random between $0$ and $2$. What is the probability that the difference between the greatest and the least of these numbers is less than $\\frac{1}{4}$?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "genselect", "tir" ]
{ "cot": 14, "genselect": 8, "tir": 27 }
49
0
0
omr-ws-9825d673121459713aa70f625d9b0ac27cbfba20a32d16df99a81cd703dfe6b2
Three numbers, \(a_1, a_2, a_3\), are drawn randomly and without replacement from the set \(\{1, 2, 3, \dots, 1000\}\). Three other numbers, \(b_1, b_2, b_3\), are then drawn randomly and without replacement from the remaining set of 997 numbers. Let \(p\) be the probability that, after a suitable rotation, a brick of ...
[ "5" ]
[ "Three numbers, \\(a_1, a_2, a_3\\), are drawn randomly and without replacement from the set \\(\\{1, 2, 3, \\dots, 1000\\}\\). Three other numbers, \\(b_1, b_2, b_3\\), are then drawn randomly and without replacement from the remaining set of 997 numbers. Let \\(p\\) be the probability that, after a suitable rotat...
[ "aops_c5_contests_amp_programs" ]
[ "cot" ]
{ "cot": 15 }
15
0
0
omr-ws-dd37b174c84c69fd292e61dcb807ccee5e5d1b017b973f7da5bff9f31f42d1e3
Three numbers, whose sum is equal to 93, constitute a geometric progression. They may also be considered as the first, second and seventh terms of an arithmetic progression. Find these numbers.
[ "(1) $3;15;75$, (2) $31;31;31$" ]
[ "Three numbers, whose sum is equal to 93, constitute a geometric progression. They may also be considered as the first, second and seventh terms of an arithmetic progression. Find these numbers." ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-677a6b948e92f7880fbf4b757332765145647edbdc17723ab80ef76ecfd54f07
Three of the edges of a cube are $\overline{AB}, \overline{BC},$ and $\overline{CD},$ and $\overline{AD}$ is an interior diagonal. Points $P, Q,$ and $R$ are on $\overline{AB}, \overline{BC},$ and $\overline{CD},$ respectively, so that $AP = 5, PB = 15, BQ = 15,$ and $CR = 10.$ What is the area of the polygon that is t...
[ "525" ]
[ "Three of the edges of a cube are $\\overline{AB}, \\overline{BC},$ and $\\overline{CD},$ and $\\overline{AD}$ is an interior diagonal. Points $P, Q,$ and $R$ are on $\\overline{AB}, \\overline{BC},$ and $\\overline{CD},$ respectively, so that $AP = 5, PB = 15, BQ = 15,$ and $CR = 10.$ What is the area of the polyg...
[ "MATH_training_set" ]
[ "cot" ]
{ "cot": 10 }
10
0
0
omr-ws-4fceeccfe7853f81f7e8f7fab0abab6cd44ce0f1aa93fc7ad3a18e457cc80d21
Three of the edges of a cube are $\overline{AB}, \overline{BC},$ and $\overline{CD},$ and $\overline{AD}$ is an interior diagonal. Points $P, Q,$ and $R$ are on $\overline{AB}, \overline{BC},$ and $\overline{CD},$ respectively, so that $AP = 5, PB = 15, BQ = 15,$ and $CR = 10.$ What is the area of the polygon that is t...
[ "525" ]
[ "Three of the edges of a cube are $\\overline{AB}, \\overline{BC},$ and $\\overline{CD},$ and $\\overline{AD}$ is an interior diagonal. Points $P, Q,$ and $R$ are on $\\overline{AB}, \\overline{BC},$ and $\\overline{CD},$ respectively, so that $AP = 5, PB = 15, BQ = 15,$ and $CR = 10.$ What is the area of the poly...
[ "MATH_training_set" ]
[ "cot", "tir" ]
{ "cot": 23, "tir": 5 }
28
0
0
omr-ws-c977badd2c66c7da0a06e21f16f5cad151b1aa4bfff57efa18d92abff465ca2c
Three of the four endpoints of the axes of an ellipse are, in some order, \[(-2, 4), \; (3, -2), \; (8, 4).\]Find the distance between the foci of the ellipse.
[ "2 \\sqrt{11}" ]
[ "Three of the four endpoints of the axes of an ellipse are, in some order, \\[(-2, 4), \\; (3, -2), \\; (8, 4).\\]Find the distance between the foci of the ellipse." ]
[ "MATH_training_set" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-789b4eec56c22677ad0778df5717df5f1f486db25f61233857eec78f5b2db708
Three of the four vertices of a rectangle are $(5, 11)$, $(16, 11)$ and $(16, -2)$. What is the area of the intersection of this rectangular region and the region inside the graph of the equation $(x - 5)^2 + (y + 2)^2 = 9$? Express your answer in terms of $\pi$.
[ "\\frac94\\pi" ]
[ "Three of the four vertices of a rectangle are $(5, 11)$, $(16, 11)$ and $(16, -2)$. What is the area of the intersection of this rectangular region and the region inside the graph of the equation $(x - 5)^2 + (y + 2)^2 = 9$? Express your answer in terms of $\\pi$." ]
[ "MATH_training_set" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-591210fe1bf3cede662e87f929c1d1995164e8eed95f4c0c69ef51b42dfa8a79
Three of the roots of the equation \(x^4 - px^3 + qx^2 - rx + s = 0\) are \(\tan A\), \(\tan B\), and \(\tan C\), where \(A\), \(B\), and \(C\) are angles of a triangle. Determine the fourth root as a function only of \(p\), \(q\), \(r\), and \(s\).
[ "\\(\\rho = \\dfrac {r-p} {q-s-1}\\)" ]
[ "Three of the roots of the equation \\(x^4 - px^3 + qx^2 - rx + s = 0\\) are \\(\\tan A\\), \\(\\tan B\\), and \\(\\tan C\\), where \\(A\\), \\(B\\), and \\(C\\) are angles of a triangle. Determine the fourth root as a function only of \\(p\\), \\(q\\), \\(r\\), and \\(s\\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect", "tir" ]
{ "cot": 37, "genselect": 4, "tir": 3 }
44
0
0
omr-ws-c49b883285480c8a766f465e6096c64f6f4bd0e48585e32c331592e360967daa
Three of the sides of an isosceles trapezoid have lengths $1, 10, 20$. Find the sum of all possible values of the fourth side.
[ "30" ]
[ "Three of the sides of an isosceles trapezoid have lengths $1, 10, 20$. Find the sum of all possible values of the fourth side." ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 2 }
18
0
0
omr-ws-e4ef8b8217b0195b41a6464dba93ee30af8835cd18f0c7eef0b5482b8109be73
Three of the vertices of parallelogram $ABCD$ are $A = (3,-1,2),$ $B = (1,2,-4),$ and $C = (-1,1,2).$ Find the coordinates of $D.$
[ "(1,-2,8)" ]
[ "Three of the vertices of parallelogram $ABCD$ are $A = (3,-1,2),$ $B = (1,2,-4),$ and $C = (-1,1,2).$ Find the coordinates of $D.$" ]
[ "MATH_training_set" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-70e103b2eeec1e259983ebf56d514692398bbac53e6d78a03db82029dc7d06f4
Three one-inch squares are placed with their bases on a line. The center square is lifted out and rotated 45 degrees, then centered and lowered into its original location until it touches both of the adjoining squares. How many inches is the point $B$ from the line on which the bases of the original squares were placed...
[ "\\(\\sqrt{2} + \\frac{1}{2}\\)" ]
[ "Three one-inch squares are placed with their bases on a line. The center square is lifted out and rotated 45 degrees, then centered and lowered into its original location until it touches both of the adjoining squares. How many inches is the point $B$ from the line on which the bases of the original squares were p...
[ "aops_c5_contests_amp_programs" ]
[ "cot", "genselect", "tir" ]
{ "cot": 1, "genselect": 1, "tir": 3 }
5
0
0
omr-ws-d6b2a576e1ec6b86ed36424c10e12f92bedcb43a97b47707a0c2c1718ce58612
Three one-inch squares are placed with their bases on a line. The center square is lifted out and rotated \(45^\circ\), then centered and lowered into its original location until it touches both of the adjoining squares. How many inches is the point \(B\) from the line on which the bases of the original squares were pl...
[ "\\(\\sqrt{2} + \\frac{1}{2}\\)" ]
[ "Three one-inch squares are placed with their bases on a line. The center square is lifted out and rotated \\(45^\\circ\\), then centered and lowered into its original location until it touches both of the adjoining squares. How many inches is the point \\(B\\) from the line on which the bases of the original squar...
[ "aops_c4_high_school_math" ]
[ "tir" ]
{ "tir": 2 }
2
0
0
omr-ws-f3ee0cc4f398a36b1f97f9dad10c75aa701e90e5d0281a3d5c3112015e53d166
Three one-inch squares are placed with their bases on a line. The center square is lifted out, rotated 45 degrees, and then centered and lowered until it touches both adjoining squares. How many inches is the point B from the line on which the bases of the original squares were placed?
[ "\\(\\sqrt{2} + \\frac{1}{2}\\)" ]
[ "Three one-inch squares are placed with their bases on a line. The center square is lifted out, rotated 45 degrees, and then centered and lowered until it touches both adjoining squares. How many inches is the point B from the line on which the bases of the original squares were placed?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "genselect", "tir" ]
{ "cot": 2, "genselect": 3, "tir": 5 }
10
0
0
omr-ws-f996543957dd3b9bd1483c65773fd061373c6d9c16370991c91d08b86040ebcc
Three pairs of twin women are each married to twin men in such a way that each woman's twin sister is married to her husband's twin brother. If all twelve of them enter a mixed double's tournament, in how many ways can they be arranged as six mixed pairs (i.e., in each pair there is one woman and one man) so that no on...
[ "80" ]
[ "Three pairs of twin women are each married to twin men in such a way that each woman's twin sister is married to her husband's twin brother. If all twelve of them enter a mixed double's tournament, in how many ways can they be arranged as six mixed pairs (i.e., in each pair there is one woman and one man) so that ...
[ "aops_c4_high_school_math", "c4_high_school_math" ]
[ "cot", "genselect", "tir" ]
{ "cot": 7, "genselect": 8, "tir": 22 }
37
0
0
omr-ws-daf5a11383a42f29017da6346fe9d1ba6dbbda0bc4a3c80f8242451dd13924b8
Three pairs of twin women are each married to twin men in such a way that each woman's twin sister is married to her husband's twin brother. If all twelve of them enter a mixed doubles tennis tournament, in how many ways can they be arranged as six mixed pairs (i.e., in each pair there is one woman and one man) so that...
[ "80" ]
[ "Three pairs of twin women are each married to twin men in such a way that each woman's twin sister is married to her husband's twin brother. If all twelve of them enter a mixed doubles tennis tournament, in how many ways can they be arranged as six mixed pairs (i.e., in each pair there is one woman and one man) so...
[ "aops_c4_high_school_math" ]
[ "cot", "genselect", "tir" ]
{ "cot": 3, "genselect": 5, "tir": 23 }
31
0
0
omr-ws-8c257332c165d0fd0edce83aba7c9244865a083fac49a168417b9c5a38f37903
Three pairs of twin women are each married to twin men in such a way that each woman's twin sister is married to her husband's twin brother. If all twelve of them enter a mixed doubles tennis tournament, in how many ways can they be arranged as six mixed pairs so that no one is paired with their spouse or their twin's ...
[ "80" ]
[ "Three pairs of twin women are each married to twin men in such a way that each woman's twin sister is married to her husband's twin brother. If all twelve of them enter a mixed doubles tennis tournament, in how many ways can they be arranged as six mixed pairs so that no one is paired with their spouse or their tw...
[ "aops_c4_high_school_math" ]
[ "cot", "genselect", "tir" ]
{ "cot": 5, "genselect": 8, "tir": 17 }
30
0
0
omr-ws-67c35e0e43829bd6732b6d328916c844474e5a08ba7d9bc4699a7fb424c6c550
Three pairwise intersecting rays are given. Points begin to move along each ray with constant speed. It is known that these three points always form a triangle, and the center of the circumscribed circle of this triangle moves uniformly in a straight line. If the initial positions of the points are at distances $a$, $b...
[ "\\dfrac{2}{3}" ]
[ "Three pairwise intersecting rays are given. Points begin to move along each ray with constant speed. It is known that these three points always form a triangle, and the center of the circumscribed circle of this triangle moves uniformly in a straight line. If the initial positions of the points are at distances $a...
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
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