Question
Download Solution PDFThe average weight of 15 persons is increased by 1.2 kg when one of them whose weight is 51 kg is replaced by a new man. The weight of the new man is:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
The average weight of 15 people increases by 1.2 kg
A person weighing 51 kg is replaced by a new person.
Concept used:
Average of N number of quantities = (Sum of N quantities)/(Total number of quantities)
Calculations:
Total increase in weight = 15 × 1.2 = 18 kg
This increment of weight is because of the replacement of a person of 51 kg with a new person
This implies that the new person weights 18 kg more than the person whose weight is 51 kg
The weight of a new person = 51+ 18 = 69 kg.
The answer is 69 kg.
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