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 44 now, the son age 5 years back was Pick.
A) 14  B) 17  C) 11  D) 19  E) 99

Rationale: "let the son ' s present age be x years . then , ( 44 - x ) = x x = 22 . son ' s age 5 years back = ( 22 - 5 ) = 17 years answer : b"
Answer: B