Discussion :: Average
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The average weight of 10 men is decreased by 2 kg when one of them whose weight is 60 kg is replaced by a new man. What is the weight of the new man?
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Answer : Option B
Explanation :
Average decrease in weight per person = 2kg
There are 10 men so total decrease in weight on replacing a man with a new man = 10 ∗ 2= 20 kg
Weight of the man who is replaced = 60 kg
∴The weight of the new man would be = Weight of man replaced - total decrease in weight of the group of 10 men.
= 60 - 20 = 40 kg
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