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

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

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

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

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