The mean weight of 60 students of a class is 52 . 72 kg . If the mean weight of 35 of them is 54 kg find the mean weight of the remaining students ?
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total weight of class = 60*52.72
= 3163.2kg
weight of 35 of them = 35*54
=1890
weight of remaing 25 students= 3163.2-1890
=1273.2kg
average if remaing 25 students in class =1273.2/25
= 50.928 kg
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