Question

If mean of 5 numbers is 27. If one no. Is excluded, the mean gets reduced by 2. Determine the excluded no

Answer 1

Hi friend,
The mean of 5 numbers = 27
The sum of 5 numbers = 27×5
=135
The mean of 4 numbers = 27-2
= 25
The sum of 4 numbers = 25×4
= 100
Excluded no. = 135-100
= 35
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