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25 lines
8.6 KiB
JSON
25 lines
8.6 KiB
JSON
{"id": "aime-1986-1", "question": "What is the sum of the solutions to the equation $\\sqrt[4]{x} = \\frac{12}{7 - \\sqrt[4]{x}}$ ?", "answer": 337}
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{"id": "aime-1986-7", "question": "The increasing sequence $1,3,4,9,10,12,13\\cdots$ consists of all those positive integers which are powers of 3 or sums of distinct powers of 3. Find the $100^{\\mbox{th}}$ term of this sequence.", "answer": 981}
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{"id": "aime-1986-8", "question": "Let $S$ be the sum of the base $10$ logarithms of all the proper divisors of $1000000$ . What is the integer nearest to $S$ ?", "answer": 141}
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{"id": "aime-1986-14", "question": "The shortest distances between an interior diagonal of a rectangular parallelepiped , $P$ , and the edges it does not meet are $2\\sqrt{5}$ , $\\frac{30}{\\sqrt{13}}$ , and $\\frac{15}{\\sqrt{10}}$ . Determine the volume of $P$ .", "answer": 750}
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{"id": "aime-1993-8", "question": "Let $S\\,$ be a set with six elements. In how many different ways can one select two not necessarily distinct subsets of $S\\,$ so that the union of the two subsets is $S\\,$ ? The order of selection does not matter; for example, the pair of subsets $\\{a, c\\},\\{b, c, d, e, f\\}$ represents the same selection as the pair $\\{b, c, d, e, f\\},\\{a, c\\}.$", "answer": 365}
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{"id": "aime-1994-9", "question": "A solitaire game is played as follows. Six distinct pairs of matched tiles are placed in a bag. The player randomly draws tiles one at a time from the bag and retains them, except that matching tiles are put aside as soon as they appear in the player's hand. The game ends if the player ever holds three tiles, no two of which match; otherwise the drawing continues until the bag is empty. The probability that the bag will be emptied is $p/q,\\,$ where $p\\,$ and $q\\,$ are relatively prime positive integers. Find $p+q.\\,$", "answer": 394}
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{"id": "aime-1996-2", "question": "For each real number $x$ , let $\\lfloor x \\rfloor$ denote the greatest integer that does not exceed $x$ . For how many positive integers $n$ is it true that $n<1000$ and that $\\lfloor \\log_{2} n \\rfloor$ is a positive even integer?", "answer": 340}
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{"id": "aime-1997-2", "question": "The nine horizontal and nine vertical lines on an $8\\times8$ checkerboard form $r$ rectangles, of which $s$ are squares. The number $s/r$ can be written in the form $m/n,$ where $m$ and $n$ are relatively prime positive integers. Find $m + n.$", "answer": 125}
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{"id": "aime-2000-2-I", "question": "Let $u$ and $v$ be integers satisfying $0 < v < u$ . Let $A = (u,v)$ , let $B$ be the reflection of $A$ across the line $y = x$ , let $C$ be the reflection of $B$ across the y-axis, let $D$ be the reflection of $C$ across the x-axis, and let $E$ be the reflection of $D$ across the y-axis. The area of pentagon $ABCDE$ is $451$ . Find $u + v$ .", "answer": 21}
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{"id": "aime-2003-13-II", "question": "A bug starts at a vertex of an equilateral triangle. On each move, it randomly selects one of the two vertices where it is not currently located, and crawls along a side of the triangle to that vertex. Given that the probability that the bug moves to its starting vertex on its tenth move is $m/n,$ where $m$ and $n$ are relatively prime positive integers, find $m + n.$", "answer": 683}
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{"id": "aime-2004-5-II", "question": "In order to complete a large job, 1000 workers were hired, just enough to complete the job on schedule. All the workers stayed on the job while the first quarter of the work was done, so the first quarter of the work was completed on schedule. Then 100 workers were laid off, so the second quarter of the work was completed behind schedule. Then an additional 100 workers were laid off, so the third quarter of the work was completed still further behind schedule. Given that all workers work at the same rate, what is the minimum number of additional workers, beyond the 800 workers still on the job at the end of the third quarter, that must be hired after three-quarters of the work has been completed so that the entire project can be completed on schedule or before?", "answer": 766}
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{"id": "aime-2004-9-I", "question": "Let $ABC$ be a triangle with sides 3, 4, and 5, and $DEFG$ be a 6-by-7 rectangle. A segment is drawn to divide triangle $ABC$ into a triangle $U_1$ and a trapezoid $V_1$ and another segment is drawn to divide rectangle $DEFG$ into a triangle $U_2$ and a trapezoid $V_2$ such that $U_1$ is similar to $U_2$ and $V_1$ is similar to $V_2.$ The minimum value of the area of $U_1$ can be written in the form $m/n,$ where $m$ and $n$ are relatively prime positive integers. Find $m+n.$", "answer": 35}
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{"id": "aime-2004-15-II", "question": "A long thin strip of paper is 1024 units in length, 1 unit in width, and is divided into 1024 unit squares. The paper is folded in half repeatedly. For the first fold, the right end of the paper is folded over to coincide with and lie on top of the left end. The result is a 512 by 1 strip of double thickness. Next, the right end of this strip is folded over to coincide with and lie on top of the left end, resulting in a 256 by 1 strip of quadruple thickness. This process is repeated 8 more times. After the last fold, the strip has become a stack of 1024 unit squares. How many of these squares lie below the square that was originally the 942nd square counting from the left?", "answer": 593}
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{"id": "aime-2005-8-I", "question": "The equation $2^{333x-2} + 2^{111x+2} = 2^{222x+1} + 1$ has three real roots. Given that their sum is $\\frac mn$ where $m$ and $n$ are relatively prime positive integers, find $m+n.$", "answer": 113}
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{"id": "aime-2006-1-I", "question": "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 $ABCD.$", "answer": 84}
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{"id": "aime-2007-2-II", "question": "Find the number of ordered triples $(a,b,c)$ where $a$ , $b$ , and $c$ are positive integers , $a$ is a factor of $b$ , $a$ is a factor of $c$ , and $a+b+c=100$ .", "answer": 200}
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{"id": "aime-2008-13-I", "question": "Let $p(x,y) = a_0 + a_1x + a_2y + a_3x^2 + a_4xy + a_5y^2 + a_6x^3 + a_7x^2y + a_8xy^2 + a_9y^3$ . Suppose that $p(0,0) = p(1,0) = p( - 1,0) = p(0,1) = p(0, - 1) = p(1,1) = p(1, - 1) = p(2,2) = 0$ . There is a point $\\left(\\frac {a}{c},\\frac {b}{c}\\right)$ for which $p\\left(\\frac {a}{c},\\frac {b}{c}\\right) = 0$ for all such polynomials, where $a$ , $b$ , and $c$ are positive integers, $a$ and $c$ are relatively prime, and $c > 1$ . Find $a + b + c$ .", "answer": 40}
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{"id": "aime-2016-9-I", "question": "Triangle $ABC$ has $AB=40,AC=31,$ and $\\sin{A}=\\frac{1}{5}$ . This triangle is inscribed in rectangle $AQRS$ with $B$ on $\\overline{QR}$ and $C$ on $\\overline{RS}$ . Find the maximum possible area of $AQRS$ .", "answer": 744}
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{"id": "aime-2016-12-I", "question": "Find the least positive integer $m$ such that $m^2 - m + 11$ is a product of at least four not necessarily distinct primes.", "answer": 132}
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{"id": "aime-2017-15-II", "question": "Tetrahedron $ABCD$ has $AD=BC=28$ , $AC=BD=44$ , and $AB=CD=52$ . For any point $X$ in space, define $f(X)=AX+BX+CX+DX$ . The least possible value of $f(X)$ can be expressed as $m\\sqrt{n}$ , where $m$ and $n$ are positive integers, and $n$ is not divisible by the square of any prime. Find $m+n$ .", "answer": 682}
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{"id": "aime-2020-8-II", "question": "Define a sequence recursively by $f_1(x)=|x-1|$ and $f_n(x)=f_{n-1}(|x-n|)$ for integers $n>1$ . Find the least value of $n$ such that the sum of the zeros of $f_n$ exceeds $500,000$ .", "answer": 101}
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{"id": "aime-2022-1-II", "question": "Adults made up $\\frac5{12}$ of the crowd of people at a concert. After a bus carrying $50$ more people arrived, adults made up $\\frac{11}{25}$ of the people at the concert. Find the minimum number of adults who could have been at the concert after the bus arrived.", "answer": 154}
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{"id": "aime-2023-12-I", "question": "Let $\\triangle ABC$ be an equilateral triangle with side length $55.$ Points $D,$ $E,$ and $F$ lie on $\\overline{BC},$ $\\overline{CA},$ and $\\overline{AB},$ respectively, with $BD = 7,$ $CE=30,$ and $AF=40.$ Point $P$ inside $\\triangle ABC$ has the property that \\[\\angle AEP = \\angle BFP = \\angle CDP.\\] Find $\\tan^2(\\angle AEP).$", "answer": 75}
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{"id": "aime-2024-14-II", "question": "Let $b \\geq 2$ be an integer. Call a positive integer $n$ $b\\textit{-eautiful}$ if it has exactly two digits when expressed in base $b$ , and these two digits sum to $\\sqrt{n}$ . For example, $81$ is $13$ -eautiful because $81=\\underline{6}$ $\\underline{3}_{13}$ and $6+3=\\sqrt{81}$ . Find the least integer $b\\geq 2$ for which there are more than ten $b$ -eautiful integers.", "answer": 211}
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