3 year ago,ratio of age of A and B is 3:1. If the present age of B is 37.5% of the present age of A then what is the difference between their present age (in Year)
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Step-by-step explanation:
37.5% = 3/8
A= 3/8 B
8A = 3B
A-3 = 3{ B -3 }
A-3 = 3B -9
A-3 = 8A -9
6
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