The agescof A and B are in the ratio 7:5. Four years from now the ratio of their ages will be 4:3.Find out their present ages
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Step-by-step explanation:
7x : 5x
{ 7x + 4 } / 5x + 4 = 4/3
21x + 12 = 20x + 16
x = 4
7x = 7 × 4
= 28
5x = 5 ×4
= 20
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