What is the geometric mean of the pair of numbers 99 and 11

Question

A 968 \B 33
C 43
D 38

Answer 1

The geometric mean of two numbers is the square root of their product.

So,

$\sqrt{(99)(11)} = \sqrt{1089} = 33$

The answer is $\boxed{\mathrm{(B)}\ 33}$.