Question

the ages of A and B are in the ratio 5 : 7 four years from now the ratio of their ages will be 3 :4 the present age of B is

Answer 1

ATQ

$\frac{5x + 4}{7x + 4} = \frac{3}{4} \\ \\ = > x = 4$


A's age = 20 years
B's age = 28 years