The average age of a committee of 12 members is 40 years. A member aged 55 years
retired and his place was taken by another member aged 39 years . The average age of
present committee is;
Choose the most appropriate option.
A) 38.7 years  B) 38 years  C) 36 years  D) 35 years  E) 34 years
Exp. Total age of the committee = 40*12= 
<gadget id="calculator">40*12</gadget>
<output>480</output>
480,   Total age when a member is retired   and a new one was joined= 480-55 +39, =464   Average age of present committee = 464/12 = 38.7.   38.7 yearsnswer: 38.7 years
<result>A</result>
The average age of a committee of 12 members is 40 years. A member aged 55 years
retired and his place was taken by another member aged 39 years . The average age of
present committee is;