The defference between two numbers is 5 and the difference between their squares is 65 . What is the larger number ?
A
13
B
11
C
8
D
9
Correct Answer: 9
X - Y = 5X^2 - Y^2 = 165(X + Y)(X - Y) = 165(X + Y)*5 = 165X + Y = 33So, 2X = 38X = 19Y = 33 - 19 = 14