The average weight of 10 men is decreased byThe average weight of 10 men is decreased by 5 kg

when, one of them weighing 100 kg is replaced by

another person. This new person is again replaced

by another person, whose weight is 10 kg lower than

the person he replaced. What is the overall change
in the average due to this dual change?

number of men = 10<br>let average weight of 10 men be X<br>total weight of 10 men will be 10X<br><br>average is reduced by 5 due to the change<br>therefore new average = X-5<br>therefore new total weight = 10X-50<br><br>change in the weight after the first change is 10X-(10X-50) = 50<br>therefore the weight of new member must be 50<br><br>newest members weight is 10 less then the earlier new mmber = 50-10 = 40<br><br><br>I HAVE SOLVED ONLY TILL HERE. IF YOU HAVE GOT THE ANSWER POST IT HERE<br>