The average age of a husband and his wife was 26 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 one:
A) 11  B) 18  C) 21  D) 287  E) 27
Explanation:   Sum of the present ages of husband, wife and child = (26 * 2 + 5 * 2) + 1= 
<gadget id="calculator">(26 * 2 + 5 * 2) + 1</gadget>
<output>63</output>
63 years.   Required average= (63/3)= 
<gadget id="calculator">(63/3)</gadget>
<output>21</output>
21 years.   Answer: 21) 21
<result>C</result>
The average age of a husband and his wife was 26 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 :