The sum of ages of 5 children born at the intervals of 2 years each is 55 years. What is the age of the youngest child?	Choose the correct choice: A) 4 B) 7 C) 6 D) 9 E) 8

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 ) = 50 5 x = 55 - 20 = 35 x = 7 . age of the youngest child = x = 7 years . answer : b"
Answer: B