Question

A group of people contains men, women, and children. If 40% of them are men, 35% are women, and the rest are children, and their average weights are 70 kg, 60 kg, and 30 kg, respectively. The average weight of the group is:

A 45.5 kg
B 56.5 gm
C 45.5 gm
D 56.5 kg
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