Question

The mean of five no. Is 27 if one no. Is excluded thier mean is 2t .Find the excluded observation

Answer 1

First of all the question is typed wrong!

It has to be 25 instead of 2t!

Mean of the five numbers=27

Sum of the five numbers =27×5

=135

Let the number excluded be x.

A/Q

(135-x)4=25

135-x=100

x=35.

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