The average age of a husband and his wife was 17 years at the time of their marriage. After five years they have a one-year old child. The average age of the family now is : Choose the correct choice from the following answers:
A) 55/3  B) 15  C) 19  D) 287  E) 27
Explanation:   Sum of the present ages of husband, wife and child = (17 * 2 + 5 * 2) + 1= 
<gadget id="calculator">(17 * 2 + 5 * 2) + 1</gadget>
<output>45</output>
45 years.   Required average= (45/3)= 
<gadget id="calculator">(45/3)</gadget>
<output>15</output>
15years.   Answer: 15
<result>B</result>
The average age of a husband and his wife was 17 years at the time of their marriage. After five years they have a one-year old child. The average age of the family now is :