MathDB
S 33

Source:

May 25, 2007
modular arithmeticMiscellaneous Problems

Problem Statement

Four consecutive even numbers are removed from the set A={1,2,3,⋯ ,n}.A=\{ 1, 2, 3, \cdots, n \}. If the arithmetic mean of the remaining numbers is 51.562551.5625, which four numbers were removed?
Back to ProblemsView on AoPS