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 most appropriate option.
A) 4	B) 8	C) 10	D) None of these	E) Cannot be determined
Explanation:   Let x = the youngest child. Each of the other four children will then be x+3, x+6, x+9, x+12.   We know that the sum of their ages is 50 .   so, x+(x+3)+(x+6)+(x+9)+(x+12) = 50   inline Rightarrow x= 4   inline therefore The youngest child is 4 years old. Answer: 10
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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 ?