the average weight of the 24 students is 60 kg. when a student is transfered, the average is increased by 1/2kg. find the weight of transferred student.
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given that av. weight of 24 students is 60
then total weight of the students is 24×60 = 1440.
a student is transfered then the remaining students is 23.
and 1/2 kg is increased then new av. weight is 60+ 1/2 = 121/2.
now new total av weight is 23× 121/2 = 1391.5
now the weight of transfered student is 1440-1391.5 = 48.5
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