The mean of five numbers is 30. If one is excluded, their mean become – InterviewSolution

1.

The mean of five numbers is 30. If one is excluded, their mean become 28What is the excluded number?

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thanks a lot

total of 5 numbers = 30 × 5 =150 now total of 4 numbers = 28×4 = 112 so excluded number = 150 - 112 = 38

thank

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