P is two years older than Q who is twice as old as R. The total of the ages of P, Q and R is 25. How old is Q?  Choices:
A) 7.2 years  B) 8.2 years  C) 9.8 years  D) 9.2 years  E) 9.4 years
Let age of R =x. Then,   Age of Q =2x   Age of P =2+2x   Total age of P,Q and R =25   ⇒(2+2x)+2x+x=25   ⇒5x=23   ⇒x=23/5= 
<gadget id="calculator">23/5</gadget>
<output>23/5 = around 4.6</output>
4.6 years   B's age=2x=2×4.6=9.2 years   ANSWER:9.2 years
<result>D</result>
P is two years older than Q who is twice as old as R. The total of the ages of P, Q and R is 25. How old is Q?