The average weight of

Question

The average weight of 10 oarsmen in a boat is increased by 1.8 kg When one of the crew, who weights 53 kg is replaced by a new man. Find the weight of the new man .

Options:

A . 68 kg

B . 70 kg

C . 71 kg

D . 73 kg

Answer: Option C

Sol. Total weight increased = (1.8 x 10) kg = 18 kg.

`:.` Weight of the new man = (53 + 18) kg = 71 kg.

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