Subject :IMO Class : Class 5
The weight of Tom is 1/7 times the weight of his
grandfather and 1/4 times the weight of his mother. What
fraction is Tom's mother's weight to his grandfather's
Class : Class 5
You have these two equationsT = G/7 and T = M/4,where T is Tom's weight, G is grandfather's weight and M is mother's weight.Hence, G/7 = M/4,which implies M = (4G)/7.Answer. Mother's weight is 4/7 of grandfather's weight.