The average weight of 8 men is increased by 1.5 kg when one of the men who weighs 65 kg is replaced by a new man. The weight of the new man is:
Avg. Weight increase = 1.5kg
Total weight increase = 8*1.5 = 12kg
As after replacement increase weight.
So weight of num > weight of man replaced
Weight of new man = 65+12=77kg
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