Q7 of 174 Page 571

The mean of 24 numbers is 35. If 3 is added to each number, what will be the new mean?

Given,


Mean of 24 numbers = 35


Sum of these numbers = 24 × 35 = 840.


Every number is increased by 3,


Total increment = 24 × 3 = 72


New sum = 840 + 72 = 912


New Mean =


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