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  • The mean weight of 34 student of a class of a school is 42 kg if , the weight of the teacher is included,the mean rises by 400 gm find the weight of the teacher

The mean weight of 34 student of a class of a school is 42 kg if , the weight of the teacher is included,the mean rises by 400 gm find the weight of the teacher

Answers (1)

Mean weight = 42 kg

Assume weight of techer = K kg

New mean = 42.4 kg

42x34+K=42.4x35

K=56 Kg

Posted by

Ravindra Pindel

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