The mean of five numbers is 27. If one number is excluded, their mean – InterviewSolution

1.

The mean of five numbers is 27. If one number is excluded, their mean is 25. Find the excluded number.

Answer»

The mean of the numbers 27

The, sum of five numbers = 5 x 27 =135.

If one number is excluded, then the new mean is 25

Sum of numbers = 4 x 25 = 100

Excluded number = 135 -100 = 35

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