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The mean of 5number is 18.if one number is excluded then their mean is 16, then what is the excluded number

Posted by Sonal Uikey 7 years, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Abhijeet Rana 7 years, 8 months ago

The mean of 5 numbers is 18 . it means that there average is 18. So total sum of 5 numbers is 5× 18=90. And when one numbers excluded then total numbers are 4 . And mean = 16 so total sum = 16×4= 64. So to find that numbers we have to do 90 - 64=26.

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