The sum of ages of 5 children born 2 years different each is 40 years. What is the age of the Elder child?	Choose the correct option
A) 12  B) 9  C) 10  D) 16  E) 17

Rationale: "let the ages of children be x , ( x + 2 ) , ( x + 4 ) , ( x + 6 ) and ( x + 8 ) years . then , x + ( x + 2 ) + ( x + 4 ) + ( x + 6 ) + ( x + 8 ) = 40 5 x = 20 x = 4 . x + 8 = 4 + 8 = 12 answer : a"
Answer: A