If w is 10 percent less than x, and y is 30 percent less than z, then wy is what percent less than xz?

If w is 10 percent less than x, and y is 30 percent less than z, then wy is what percent less than xz?

A 10%

B 20%

C 37%

D 40%

E None

Solution

Correct Answer: Option C