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The mean of 5 numbers is 30. if one number is excluded, their mean becomes 28 .find the excluded number

Posted by Anshman Modi 4 years, 11 months ago

CBSE > Class 09 > Mathematics

1 answers

Namrata Jindal 4 years, 11 months ago

Mean of 5 numbers? is 30. So sum of the numbers will be 5*30=150. If one number is excluded, Mean of 4 numbers was 28. So sum will be 4*28=112. Excluded number?=150-112=38.

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CBSE > Class 09 > Mathematics