### The average height of 25 boys is 1.4 m. When 5 boys leave the group, then the average height increased by 0.15 m. What is the average height of the 5 boys who leave ?

**A.** 0.8 m

**B.** 0.9 m

**C.** 0.95 m

**D.** 1.05 m

## Show Answer

###
Answer-A

Solution-

__Solution(By Apex Team)__

$\begin{array}{l}\text{Sum of height of the 5 boys}\\
\text{= (25 × 1.4 – 20 × 1.55) m}\\
\text{= 4 m}\\
\text{∴ Required average}\\
=\left(\Large\frac{4}{5}\right)\\
=0.8\ \text{m}\end{array}$