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If the mean of 25observation is …

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If the mean of 25observation is 27and each is decrease by 7what will be the new mean

Posted by Razz Abhi 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Anshu Rai ? 6 years, 10 months ago

New mean =20

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CBSE > Class 10 > Mathematics