The sum of the ages of 5 children born at the intervals of 3 years each is 80 years. What is the age of the youngest child?
Answers.
A) 2 years
B) 4 years
C) 6 years
D) 8 years
E) 10 years
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) = 80   5x = 50 =&gt; x = 10.   Age of youngest child = x = 10 years.   ANSW10 yearsR:10 years
<result>E</result>
The sum of the ages of 5 children born at the intervals of 3 years each is 80 years. What is the age of the youngest child?