GRE Question of the Day (October 18th)

Math

In two Equilateral parallelograms, A and B, the sum of the lengths of the diagonals of A is equal to the sum of the lengths of the diagonals of B. In A, the length of the longer diagonal is 20 more than the length of the shorter diagonal. In B, the length of the longer diagonal is 8 more than the length of the shorter diagonal. What is the area of B minus the area of A?

A. 336
B. 168
C. 84
D. 42
E. 0

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

Question Discussion & Explanation