The sum of ages of 4 children born 2 years different each is 40 yrs. What is the age of the Elder child?
Pick:  A) 13  B) 9  C) 16  D) 17  E) 18
Let the ages of children be x, (x + 2), (x + 4), (x + 6) years.   Then, x + (x + 2) + (x + 4) + (x + 6) = 40   4x+12 = 40 =&gt; 4x= 28   x = 7   x+6= 7+6= 
<gadget id="calculator">7+6</gadget>
<output>13</output>
13   13nswer : 13
<result>A</result>
The sum of ages of 4 children born 2 years different each is 40 yrs. What is the age of the Elder child?