Mean of 9 numbers is 25. One number 14 is excluded. Find the new mean.

CBSE Class 7 Answered

Mean of 9 numbers is 25. One number 14 is excluded. Find the new mean.

Asked by Topperlearning User | 11 Nov, 2013, 01:48: AM

Expert Answer

Mean of 9 numbers = 25

Thus, Sum of 9 numbers is 25 x 9 = 225

Excluded number = 14

Thus, Sum of the remaining 8 numbers = 225 - 14 = 211

Numbers left now = 9 - 1 = 8

New mean =

Answered by | 11 Nov, 2013, 03:48: AM

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CBSE Class 7 Answered

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