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Four years ago, the ratio of the age of ...

Four years ago, the ratio of the age of A and B was `2 : 3` and after four years it will become `5 : 7`. Find their present age.

A

36 yr and 40 yr

B

32 yr and 48 yr

C

40 yr and 56 yr

D

36 yr and 52 yr

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