The sum of 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 from the following answers
A) 4 years B) 8 years C) 6 years D) 2 years E) 10 years
Let the ages of 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   X = 4.   Age of the youngest child = X = 4 years.   4 yearsNSWER:4 years
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The sum of ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of the youngest child?