A father said his son , " I was as old as you are at present at the time of your birth. " If the father age is 32 now, the son age 5 years back was Choose the correct choice:
A) 11  B) 17  C) 11  D) 19  E) 99

Rationale: let the son ' s present age be x years . then , ( 32 - x ) = x x = 16 . son ' s age 5 years back = ( 16 - 5 ) = 11 years answer : a
Answer: A