The weights of two persons A and B are in the ratio of 3 : 5. A's wei…

Question

The weights of two persons A and B are in the ratio of 3 : 5. A's weight increases by 20% and the total weight of A and B together becomes 80kg, with an increase of 25%. By what percent did the weight of B increase ?

Accepted Answer

Option C. 28%. Answer & Solution Answer: Option C Solution: Let the initial total weight of A and B be x kg. Then, & = 125\% of x = 80 & x = 80 × 100125 = 64 kg & A's initial weight & = ( 64 × 3/8 ) kg & = 24 kg & B's initial weight & = ( 64 × 5/8 ) kg & = 40 kg & A's new weight & = 120\% of 2…