Question
Download Solution PDFThe average weight of 15 men is decreased by 2 kg when one of them whose weight is 70 kg is replaced by a new man. What is the weight of the new man?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven
The average of 15 men decreased by 2
A 70 kg is replaced by a new man
Formula used
Average = Sum of all values/No. of values
Solution
Let the average of 15 men be x,
and the weight of new man be a.
⇒ 15x - 70 + a = 15(x - 2)
⇒ 15x - 70 + a = 15x - 30
⇒ a = 70 - 30 = 40 kg
Last updated on Jul 7, 2025
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