The sum of ages of 5 girls born at the intervals of 3 years each is 60 years. What is the age of the youngest girl?
Choose the correct choice from the following answers:
A) years
B) years
C) years
D) years
E) 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) = 60   5x = 30   x = 6.   Age of the youngest child = x = 6years.   years)
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The sum of ages of 5 girls born at the intervals of 3 years each is 60 years. What is the age of the youngest girl?