GRE Question of the Day (November 11th)

Math

Set A consists of four distinct numbers; set B consists of five distinct numbers, including all four numbers that are in set A. The average (arithmetic mean) of set A is equal to the average (arithmetic mean) of set B.

A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.

Correct Answer - A - (click and drag your mouse to see the answer)

Question Discussion & Explanation