The average weight of 16 boys in a class is 50.25 kg and that of the remaining 8 boys is 45.15 kg. Find the average weights of all the boys in the class.

A. 47.55 kg.

B. 48 kg.

C. 48.55 kg.

D. 49.25 kg.

Show Answer


Solution(By Apex Team)

$\begin{array}{l}\therefore\text{ Required average }\\ =\Large\frac{50.25\times16+45.15\times8}{16+8}\\ =\Large\frac{804+361.20}{24}\\ =\Large\frac{1165.20}{24}\\ =48.55\mathrm{~kg}\text{ . }\end{array}$

Leave Your Thoughts Here...