The sum of the ages of 4 children born at the intervals of 1 years each is 12 years. what is the age of the youngest child ?
Choose the correct option
A) 2.5  B) 1.5  C) 1  D) 3.5  E) 4.5
Let x = the youngest child. Each of the other four children will then be x+1, x+2, x+3   We know that the sum of their ages is 12   so, x+(x+1)+(x+2)+(x+3) = 12   therefore The youngest child is 1.5 years old   Answer: 1.5
<result>B</result>
The sum of the ages of 4 children born at the intervals of 1 years each is 12 years. what is the age of the youngest child ?