There are two sections A and B of a class, consisting of 36 and 44 students’ respectively. If the average weight of section A is 40kg and that of section B is 35kg, find the average weight of the whole class.

A. 30 kg

B. 35 kg

C. 42.5 kg

D. 37.25 kg

Show Answer

Answer-D Solution-

Solution(By Apex Team)

The total weight of (36 + 44) Students of A and B, = (36 × 40 + 44 × 35) kg = 2980 kg. Therefore average weight of the whole class $=\Large\frac{2980}{80}\\ \mathrm{~kg}$ Therefore average weight = 37.25 kg

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