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)
Total weight of (36 + 44) Students, = (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
I have a doubt in percentage