The average age 10 members of a committee are the same as it was 2 years ago, because an old number has been replaced by a younger number.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) 14 years	B) 17 years	C) 20 years	D) 12 years	E) 11 years
10 * 2= 
<gadget id="calculator">10 * 2</gadget>
<output>20</output>
20   Answer:20 years
<result>C</result>
The average age 10 members of a committee are the same as it was 2 years ago, because an old number has been replaced by a younger number.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?