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 25 years. The present age of the husband is  Choose the most appropriate option:
A) 40  B) 30  C) 45  D) 55  E) 65
Explanation:   Sum of the present ages of husband, wife and child = (27 * 3 + 3 * 3)= 
<gadget id="calculator">(27 * 3 + 3 * 3)</gadget>
<output>90</output>
90 years.   Sum of the present ages of wife and child= (25 * 2 + 5 * 2)= 
<gadget id="calculator">(25 * 2 + 5 * 2)</gadget>
<output>60</output>
60 years.   Husband's present age= (90 - 60)= 
<gadget id="calculator">(90 - 60)</gadget>
<output>30</output>
30 years   Option 30
<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 25 years. The present age of the husband is