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.
Options:
A . 71kg
B . 70kg
C . 75kg
D . 73kg
Answer: Option A
Total weight increased =(1.8 x 10) kg =18 kg. :. Weight of the new man =(53 + 18) kg =71 kg.
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