Question

In a class there are 30 boys whose average weight is decreased by 200 g when boys whose weight was 25 kg leaves the class and the new one is admitted. find the weight of new comer

Answer 1

Reduction in total weight =30*200 gm

=6 kg

When the boy having 25 kg weight left and new one was admitted, total weight was reduced by 6 kg.

Therefore, weight of the newcomer =25−6=19kg