Question

$x$ is the geometric mean of $25$ and $4$, then find the value of $x$

• A. $12$
• B. $10$
• C. $100$
• D. $1$

Answer 1

The correct option is B $10$

Geometric mean of two numbers $a$ and $b$ is $\sqrt{ab}$,

geometric mean $x$ of $25$ and $4$ is $\sqrt{100}=10$