 # RS Aggarwal Solutions Class 9 Mathematics Solutions for Mean Median And Mode Of Ungrouped Data Exercise 18A in Chapter 18 - Mean Median And Mode Of Ungrouped Data

Question 18 Mean Median And Mode Of Ungrouped Data Exercise 18A

The average weight of 10 oarsmen in a boat is increased by 1.5kg when one of the crew who weighs

58kg is replaced by a new man. Find the weight of the new man.

It is given that

Weight of 10 oarsmen is increased by 1.5kg

So the total weight increased = 1.5 (10) = 15kg

It is given that one of the crew who weights 58kg is replaced by a new man

So we get the weight of new man = weight of man replaced + total weight increased

By substituting the values

Weight of the new man = 58 + 15 = 73kg

Therefore, the weight of a new man is 73kg.

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