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 after 6 years is 2,what is the total of P’s and Q’s present ages ?	Choose the correct answer.
A) 48 years	B) 52 years	C) 56 years	D) Cannot be determined	E) None of these
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=48 years. 48 yearsnswer 48 years
<result>A</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 after 6 years is 2,what is the total of P’s and Q’s present ages ?