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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

Answer: Option D

Solution(By Examveda 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 = $$\frac{{2980}}{{80}}$$ kg
Therefore average weight = 37.25 kg

This Question Belongs to Arithmetic Ability >> Average

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Comments ( 1 )

  1. 0352 Jeena
    0352 Jeena :
    9 months ago

    Let it be easy 40 +35 2 so ans is 37.5

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