The average age of husband, wife and their child 3 years ago was 27 years and that of wife and the child 5 years ago was 20 years. The present age of the husband is?	Choose the correct choice from the following answers
A) 35 years  B) 40 years  C) 50 years  D) 55 years  E) none of these
Explanation:   Sum of the present ages of husband, wife and child = (27 x 3 + 3 x 3) years = 90 years.   Sum of the present ages of wife and child = (20 x 2 + 5 x 2) years = 50 years.   Husband's present age = (90 - 50)= 
<gadget id="calculator">(90 - 50)</gadget>
<output>40</output>
40 years.   ANSWER: 40 years
<result>B</result>
The average age of husband, wife and their child 3 years ago was 27 years and that of wife and the child 5 years ago was 20 years. The present age of the husband is?