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?	Select.
A) 4 years B) 8 years C) 10 years D) None of these E) 15 years
Explanation:   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.   4 yearsNSWER IS 4 years
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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?