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 choices.
A) 35 years B) 40 years C) 50 years D) None of these E) Cannot be determined
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) years = 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: