The sum of the ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of the youngest child?	Choose the correct choice.
A) 2	B) 3	C) 1	D) 7	E) 4
Let the ages of the children be x, (x + 3), (x + 6), (x + 9) and (x +12) years.   Then, x + (x + 3) + (x + 6) + (x + 9) + (x + 12) = 50   5x = 20 =&gt; x = 4.   Age of youngest child = x = 4 years.   answer is 4.
<result>E</result>
The sum of the ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of the youngest child?