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

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  • A 18 ✔ ✖
  • B 72 ✔ ✖
  • C 71 ✔ ✖
  • D 60 ✔ ✖
Correct Answer

Explanation


The total weight increase when the new man replaces one of the crew members is 
1.8 kg/person * 10 people = 18 kg.
The weight of the new man is
53 kg + 18 kg = 71 kg.
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