The average weight of 5 persons is decreased by 3 kg, when one of the man whose weight is 60 kg is replaced by a new man. The weight of the new man is?
Explanation
Given,
Average weight of 5 persons is decreased by 3 kg
= 5×3= 15
later, when one of the man whose wieght is 60 kg replaced by a new man
= 60-x
The weight of the new man is = (Avg weight of 5 persons =difference of new replacement)
⇒ 15 = 60-x
⇒ x = 45kg.
Hence, Option B is correct.
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