Question

the mean weight of 9 items is 15 if an item is added to the series the mean becomes 16 the value of 10th item is​

Answer 1

Answer:

any confusion.......... ..............

Answer 2

Mean weight of 9 items is 15.

Let one more item be x.

Value of 10th item is:

=> (9 * 15 + x)/10 = 16

=> 135 + x = 160

=> x = 25.

Therefore, 10th item is 25.