The average age 9 members of a committee are the same as it was 2 years ago, because an old number has been replaced by a younger number. Find how much younger is the new member than the old number?  Pick
A) 18	B) 12	C) 27	D) 21	E) 28
9 * 2= 
<gadget id="calculator">9 * 2</gadget>
<output>18</output>
18 years   18NSWER 18
<result>A</result>
The average age 9 members of a committee are the same as it was 2 years ago, because an old number has been replaced by a younger number. Find how much younger is the new member than the old number?