What is the arithmetic mean (A.M.) between 4 and 20?

Question

Accepted Answer

The arithmetic mean of two numbers $a$ and $b$ is given by the formula $\frac{a + b}{2}$. Here, $a = 4$ and $b = 20$. Therefore, A.M. = $\frac{4 + 20}{2} = \frac{24}{2} = 12$. Thus, the correct option is B.

Sequences and Series

❓ Sibling Questions in this Chapter