The ratio between the present ages of P and Q is 5 : 7 respectively. If the difference between Q's present age and P's age afler 6 years is 2, what is the total of P's and Q's present ages?
Choose the correct answer.
A) 46 years  B) 48 years  C) 52 years  D) 56 years  E) None
Solution   Let the present ages of P and Q be 5x years and 7x years respectively.   Then	7x-(5x+6)=2   2x=8   x=4.   Required sum	= 5x+7x   =12x   5 +7= 
<gadget id="calculator">5 +7</gadget>
<output>12</output>
12x=12×4   =48 years.   Answer 48 years
<result>B</result>
The ratio between the present ages of P and Q is 5 : 7 respectively. If the difference between Q's present age and P's age afler 6 years is 2, what is the total of P's and Q's present ages?