the sum of the ages of 5 children born at the intervals of 3 year each is 40 year. what is the age of the eldest child ?	Choose one:  A) 14 year  B) 8 year  C) 10 year  D) None of these  E) 9 year
Solution   let the ages of the children be x,(x + 3),(x + 6),(x + 9) and (x + 12) year.   then, x + (x + 3) + (x + 6) + (x + 9) + (x + 12) = 40 â‡” 5 x = 10 â‡” x= 2.   âˆ´ Age of the youngest child = x + 12= 2 + 12= 
<gadget id="calculator">2 + 12</gadget>
<output>14</output>
14 years. 14 yearnswer 14 year
<result>A</result>
the sum of the ages of 5 children born at the intervals of 3 year each is 40 year. what is the age of the eldest child ?