Problem Rankings

Rank Source Description Elo Rating
1061 AMC 12 2004 A Q22 Three mutually tangent spheres of radius 1 rest on... 1500.00
1062 AMC 10 2004 B Q6 Which of the following numbers is a perfect square... 1500.00
1063 AMC 12 2004 B Q10 An annulus is the region between two concentric ci... 1500.00
1064 AMC 10 2004 B Q15 Patty has \( 20\) coins consisting of nickels and ... 1500.00
1065 AMC 10 2004 B Q24 In \( \triangle ABC\) we have \( AB = 7\), \( AC =... 1500.00
1066 AMC 10 2005 A Q5 A store normally sells windows at \( \\)100$ each.... 1500.00
1067 AMC 10 2005 A Q9 Thee tiles are marked \( X\) and two other tiles a... 1500.00
1068 AMC 10 2005 B Q12 Twelve fair dice are rolled. What is the probabili... 1500.00
1069 AMC 10 2005 B Q14 Equilateral \( \triangle ABC\) has side length \( ... 1500.00
1070 AMC 10 2005 B Q20 What is the average (mean) of all \( 5\)-digit num... 1500.00
1071 AMC 10 2006 A Q4 A digital watch displays hours and minutes with \(... 1500.00
1072 AMC 10 2006 A Q13 A player pays \( \\) 5$ to play a game. A die is ... 1500.00
1073 AMC 10 2006 A Q16 A circle of radius 1 is tangent to a circle of rad... 1500.00
1074 AMC 10 2006 A Q19 How many non-similar triangle have angles whose de... 1500.00
1075 AMC 10 2006 A Q22 Two farmers agree that pigs are worth \( \\)300\( ... 1500.00
1076 AMC 10 2006 A Q23 Circles with centers \( A\) and \( B\) have radii ... 1500.00
1077 AMC 10 2006 A Q24 Centers of adjacent faces of a unit cube are joine... 1500.00
1078 AMC 10 2006 B Q4 Circles of diameter 1 inch and 3 inches have the s... 1500.00
1079 AMC 10 2006 B Q8 A square of area \(40\) is inscribed in a semicirc... 1500.00
1080 AMC 10 2006 B Q21 For a particular peculiar pair of dice, the probab... 1500.00