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 kgThis Question Belongs to Arithmetic Ability >> Average
Let it be easy 40 +35 2 so ans is 37.5