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
Answer-C
Solution-
Solution(By Apex Team)
$\begin{array}{l}\therefore\text{ Required average }\\
=\Large\frac{50.25\times16+45.15\times8}{16+8}\\
=\Large\frac{804+361.20}{24}\\
=\Large\frac{1165.20}{24}\\
=48.55\mathrm{~kg}\text{ . }\end{array}$
