Question

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. 30kg
B. 35kg
C. 42.5kg
D. 37.25kg
E. None of these

Answer 1

Answer:

37.25 kg

Step-by-step explanation:

Total weight of section A = 36×40 = 1440 kg

Total weight of section B = 44×35 = 1540 kg

Total weight of class = 1440+1540 = 2980 kg

Total students = 36+44 = 80

Average weight of class = 2980/80 =37.25 kg

Answer 2

Answer:

D. 37.25kg

Step-by-step explanation:

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