Math, asked by gurkertjatt, 9 months ago

The mean of a set of 12 numbers is 65. When a number y is removed
from the set, the mean is changed to 63.
Find the value of y.

Answers

Answered by yashodeep76

3

Answer:

sum of 12 number s = 12 x 65

= 780

sum of 11 numbers = 11 x 63

= 693

y = 780-693

[ y = 87 ]

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