Problem Rankings

Rank Source Description Elo Rating
381 AMC 12 2004 B Q7 A square has sides of length \( 10\), and a circle... 1516.00
382 AMC 10 2004 B Q18 In right triangle \( \triangle ACE\), we have \( A... 1516.00
383 AMC 10 2004 B Q21 Let \( 1,4,\cdots\) and \( 9,16,\cdots\) be two ar... 1516.00
384 AMC 10 2004 B Q25 A circle of radius \( 1\) is internally tangent to... 1516.00
385 AMC 10 2005 A Q10 There are two values of \( a\) for which the equat... 1516.00
386 AMC 10 2005 A Q16 The sum of the digits of a two-digit number is sub... 1516.00
387 AMC 10 2005 A Q23 Let \( \overline{AB}\) be a diameter of a circle a... 1516.00
388 AMC 10 2005 B Q2 A positive number \( x\) has the property that \( ... 1516.00
389 AMC 10 2005 B Q11 The first term of a sequence is 2005. Each succeed... 1516.00
390 AMC 10 2005 B Q18 All of David's telephone numbers have the form \( ... 1516.00
391 AMC 10 2006 A Q7 The \( 8\times 18\) rectangle \( ABCD\) is cut int... 1516.00
392 AMC 10 2006 B Q14 Let \( a\) and \( b\) be the roots of the equation... 1516.00
393 AMC 10 2006 B Q18 Let \( a_1, a_2, ...\) be a sequence for which \[a... 1516.00
394 AMC 10 2007 A Q4 The larger of two consecutive odd integers is thre... 1516.00
395 AMC 10 2007 A Q5 A school store sells 7 pencils and 8 notebooks for... 1516.00
396 AMC 10 2007 A Q6 At Euclid High School, the number of students taki... 1516.00
397 AMC 10 2007 A Q13 Yan is somewhere between his home and the stadium.... 1516.00
398 AMC 10 2007 A Q25 For each positive integer \(n\), let \(S(n)\) deno... 1516.00
399 AMC 10 2007 B Q14 Some boys and girls are having a car wash to raise... 1516.00
400 AMC 10 2007 B Q17 Point \( P\) is inside equilateral \( \triangle AB... 1516.00