Ratio of present ages of A and B is 16:7. After 12 years, A’s age is twice of B’s age then find present ages of A and B?

Let present age of A and B be 16x yr and 7x yr respectively

ATQ

$frac{{16x + 12}}{{7x + 12}} = frac{2}{1}$

⇒2x=12 ⇒x=6

Present age of A=96 yr

Present age of B= 42 yr