the average weight of 8 person's increases by 2.5 kg when a new person comes i

Question

the average weight of 8 person's increases by 2.5 kg when a new person comes in place of one of them weighing 65 kg. what might be the weight of the new person?

Options:

A . 80 kg

B . 85 kg

C . 90 kg

D . 95 kg

Answer: Option B
Explanation :

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