The ratio between the present age of a and b is 4:5 if the ratio between their ages after 4 years becomes 14:17,then what is b's present age
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Answer:30 years
Step-by-step explanation:Let there age be 4x and 5x.
A.T.Q.
(4x+4)/(5x+4)=14/17
17(4x+4)=14(5x+4)
68x+68=70x+56
68-56=70x-68x
12=2x
6=x
Therefore, B's present age is 6×5=30 years
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