Q9 of 174 Page 571

The man of 15 numbers is 27. If each number is multiplied by 4, what will be the mean of the new numbers?

Given,


Mean of 15 numbers = 27


Sum of these numbers = 15 × 27 = 405


When, every number is multiplied by 4,


The new sum becomes = 405 × 4 = 1620


New Mean =


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