The average age 9 members of a committee are the same as it was 2 years ago, because an old number has been replaced by a younger number.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?
Answers.
A) 18  B) 99  C) 77  D) 26  E) 12
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The average age 9 members of a committee are the same as it was 2 years ago, because an old number has been replaced by a younger number.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?