The mean of 8 numbers is 25 if one number is included the number of new set of number become 26 find the new number
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Given :
The mean of 8 numbers is 25.
Sum of 8 numbers = 25 × 8 = 200
Now,
One number included then the mean become 26.
Sum of 9 numbers = 26 × 9 = 234
New number = 234 - 200 = 34
Hence,
The new number = 34
Given :
The mean of 8 numbers is 25.
Sum of 8 numbers = 25 × 8 = 200
Now,
One number included then the mean become 26.
Sum of 9 numbers = 26 × 9 = 234
New number = 234 - 200 = 34
Hence,
The new number = 34
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