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2. (1) The mean of 15 number is 27.if each number is multiplied by 4,what will be the mean of new number? (2) The mean of 20 number is 18.if 3 is added to each of the first ten numbers, find the mean of the new set of 20 numbers?

Answer» 2. (1) The mean of 15 number is 27.if each number is multiplied by 4,what will be the mean of new number? (2) The mean of 20 number is 18.if 3 is added to each of the first ten numbers, find the mean of the new set of 20 numbers?


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