The ratio between the present ages of P and Q is 6:7. If Q is 4 years old than P, what will be the ratio of the ages of P and Q after 4 years	Choices
A) 7:8
B) 7:9
C) 3:8
D) 5:8
E) None of these
Explanation:   Let P age and Q age is 6x years and 7x years.   Then 7x - 6x = 4 &lt;=&gt; x = 4   So required ratio will be (6x+4): (7x+4) =&gt; 28:32 =&gt; 7:8   Option 7:8
<result>A</result>
The ratio between the present ages of P and Q is 6:7. If Q is 4 years old than P, what will be the ratio of the ages of P and Q after 4 years