Question

The mean weight of 9 items is 15. If one more item is added to the series, the mean becomes 16. The value of 10th item is

Answer 1

Total weight of 9 items = 15 x 9 = 135

and total weigth of 10 items = 16 X 10 = 160

Therefore, weight of 10 items = 160 - 135 = 25

Answer 2

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