Problem Rankings

Rank Source Description Elo Rating
201 AMC 10 2005 B Q16 The quadratic equation \(x^2+mx+n=0\) has roots th... 1521.92
202 JMO 2017 A Q3 Howard is out running. He is now \(\frac{3}{5}\) o... 1519.76
203 AMC 10 2006 B Q25 Mr. Jones has eight children of different ages. O... 1519.40
204 AMC 10 2013 A Q12 In \(\triangle ABC\), \(AB=AC=28\) and \(BC=20\). ... 1519.29
205 AMC 12 1985 A Q26 Find the least positive integer \( n\) for which \... 1518.69
206 AMC 8 2019 A Q3 Which of the following is the correct order of the... 1518.60
207 AMC 8 1991 A Q14 Several students are competing in a series of thre... 1518.55
208 AMC 10 2000 A Q19 Through a point on the hypotenuse of a right trian... 1517.95
209 AMC 8 2004 A Q24 In the figure, \(ABCD\) is a rectangle and \(EFGH\... 1517.83
210 AMC 12 2009 B Q19 For each positive integer \( n\), let \( f(n)=n^4-... 1517.47
211 AMC 12 2023 A Q17 Flora the frog starts at \(0\) on the number line ... 1517.44
212 AMC 8 1985 A Q18 Nine copies of a certain pamphlet cost less than $... 1517.44
213 AMC 8 1998 A Q14 An Annville Junior High School, \(30\%\) of the st... 1517.44
214 AMC 10 2004 A Q21 Two distinct lines pass through the center of thre... 1517.44
215 AMC 12 2006 B Q23 Isosceles \( \triangle ABC\) has a right angle at ... 1517.44
216 AIME 1995 I Q12 Pyramid \(OABCD\) has square base \(ABCD,\) congru... 1517.44
217 AMC 10 2008 B Q11 Suppose that \( \left(u_n\right)\) is a sequence o... 1517.43
218 AMC 12 2013 A Q10 Let \(S\) be the set of positive integers \(n\) fo... 1517.40
219 AMC 12 1996 A Q24 The sequence \(1, 2, 1, 2, 2, 1, 2, 2, 2, 1, 2, 2,... 1517.32
220 AMC 12 2004 B Q12 In the sequence \( 2001, 2002, 2003, \ldots\), eac... 1517.28