Math, asked by deel1, 1 year ago

the mean of 28 numbers is 22.if one number is included the mean becomes 25.find the included number

Answers

Answered by Swararsham
1
The mean of 28 numbers is 22.
Therefore, sum of the 28 numbers=22*28=616
Now, If one number is included the mean becomes 25.
Therefore, sum of 29 numbers= 725
Hence, the number included =725-616=109

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