the mean weight of a class of 35 students is 45 kg . If weight of teachers to be included the mean weight increases by 500gms. Find the weight of teachers
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weight of students is 35*45kg=1575kg
weight of included teacher is 35*45.5kg=1592.5kg
extra weight is 1592.5-1575kg=17.5kg
weight of included teacher is 35*45.5kg=1592.5kg
extra weight is 1592.5-1575kg=17.5kg
SamyakRaj:
in second equation it should be 36 instead of 35
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