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The weights of two persons A and B ar...

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 80 kg, with an increase of 25%. By what percent did the weight of B increase? `20 %` b. `25 %` c. `28 %` d. `30 %`

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