Q: There are two sections, A and B of a class, consisting of 40 and 50 students, respectively. If the average weight of students in section A is 36 kg and that of those section B is 45 kg, then the average weight of the whole class is :
A.
39 kg
B.
43 kg
C.
42 kg
D.
41 kg
Correct Answer:
Option D -
Explanations:
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