Problem Rankings

Rank Source Description Elo Rating
3441 AMC 12 1987 A Q7 If \(a-1=b+2=c-3=d+4\), which of the four quantiti... 1484.00
3442 AMC 12 1987 A Q22 A ball was floating in a lake when the lake froze.... 1484.00
3443 AMC 12 1987 A Q28 Let \(a, b, c, d\) be real numbers. Suppose that a... 1484.00
3444 AMC 12 1980 A Q6 A positive number \(x\) satisfies the inequality \... 1484.00
3445 AMC 12 1980 A Q8 How many pairs \((a,b)\) of non-zero real numbers ... 1484.00
3446 AMC 12 1980 A Q19 Let \(C_1\), \(C_2\) and \(C_3\) be three parallel... 1484.00
3447 AMC 12 1980 A Q22 For each real number \(x\), let \(f(x)\) be the mi... 1484.00
3448 AMC 12 1981 A Q3 For \(x \neq 0\), \(\frac{1}{x}+ \frac{1}{2x}+\fra... 1484.00
3449 AMC 12 1981 A Q28 Consider the set of all equations \( x^3 + a_2x^2 ... 1484.00
3450 AMC 12 1994 A Q2 A large rectangle is partitioned into four rectang... 1484.00
3451 AMC 12 1994 A Q23 In the \(xy\)-plane, consider the L-shaped region ... 1484.00
3452 AMC 12 1985 A Q1 If \( 2x + 1 = 8\), then \( 4x + 1 =\) $$ \text... 1484.00
3453 AMC 12 1985 A Q14 Exactly three of the interior angles of a convex p... 1484.00
3454 AMC 12 1985 A Q20 A wooden cube with edge length \( n\) units (where... 1484.00
3455 AMC 12 1985 A Q24 A non-zero digit is chosen in such a way that the ... 1484.00
3456 AMC 12 1984 A Q9 The number of digits in \(4^{16} 5^{25}\) (when wr... 1484.00
3457 AMC 12 1984 A Q13 \(\frac{2 \sqrt 6}{\sqrt 2 + \sqrt 3 + \sqrt 5}\) ... 1484.00
3458 AMC 12 1996 A Q6 If \(f(x) = x^{\left(x+1\right)}\times \left(x+2\r... 1484.00
3459 AMC 12 1996 A Q11 Given a circle of radius 2, there are many line se... 1484.00
3460 AMC 12 1996 A Q14 Let \(E(n)\) denote the sum of the even digits of ... 1484.00