If the sum and difference of two numbers are 20 and 8 respectively, then the di

Question

If the sum and difference of two numbers are 20 and 8 respectively, then the difference of their square is:

Options:

A . 12

B . 28

C . 160

D . 180

Answer: Option C

Let the numbers be x and y. Then, x + y = 20 and x - y = 8x² - y² = (x + y)(x - y) = 20 * 8 = 160.

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