Problem Rankings

Rank Source Description Elo Rating
2441 AIME 2021 II Q15 Let \(f(n)\) and \(g(n)\) be functions satisfying ... 1500.00
2442 AIME 1991 I Q1 Find \(x^2+y^2\) if \(x\) and \(y\) are positive i... 1500.00
2443 AIME 1991 I Q4 How many real numbers \(x\) satisfy the equation \... 1500.00
2444 AIME 1991 I Q5 Given a rational number, write it as a fraction in... 1500.00
2445 AIME 1991 I Q6 Suppose \(r\) is a real number for which \[ \left\... 1500.00
2446 AIME 1991 I Q8 For how many real numbers \(a\) does the quadratic... 1500.00
2447 AIME 1991 I Q9 Suppose that \(\sec x+\tan x=\frac{22}7\) and that... 1500.00
2448 AIME 1991 I Q10 Two three-letter strings, \(aaa\) and \(bbb\), are... 1500.00
2449 AIME 1991 I Q11 Twelve congruent disks are placed on a circle \(C\... 1500.00
2450 AIME 1991 I Q12 Rhombus \(PQRS\) is inscribed in rectangle \(ABCD\... 1500.00
2451 AIME 1991 I Q13 A drawer contains a mixture of red socks and blue ... 1500.00
2452 AIME 1991 I Q14 A hexagon is inscribed in a circle. Five of the si... 1500.00
2453 AIME 1991 I Q15 For positive integer \(n\), define \(S_n\) to be t... 1500.00
2454 AIME 2010 I Q1 Maya lists all the positive divisors of \( 2010^2\... 1500.00
2455 AIME 2010 I Q3 Suppose that \( y = \frac34x\) and \( x^y = y^x\).... 1500.00
2456 AIME 2010 I Q4 Jackie and Phil have two fair coins and a third co... 1500.00
2457 AIME 2010 I Q6 Let \( P(x)\) be a quadratic polynomial with real ... 1500.00
2458 AIME 2010 I Q8 For a real number \( a\), let \( \lfloor a \rfloor... 1500.00
2459 AIME 2010 I Q9 Let \( (a,b,c)\) be the real solution of the syste... 1500.00
2460 AIME 2010 I Q10 Let \( N\) be the number of ways to write \( 2010\... 1500.00