The average age of husband, wife and their child 3 years ago was 27 years and that of wife and the child 5 years. The present age of the husband is	Choices:
A) 35 years  B) 40 years  C) 45 years  D) 50 years  E) NOne
Sol.   Sum of the present ages ofH husband, wife and child   = (27 × 3 + 3 × 3)years = 90 years.   Sum of present ages of wife and child = (20 × 2 + 5 × 2) = 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. The present age of the husband is