The average of 45 students in a class is 15 years. The average age of 25 students is 24. What is the average age of remaining 20 students? Choose the correct choice from the following answers:	A) 30	B) 25	C) 20	D) 15	E) 35
Sum of the ages of 14 students   = (20 * 45) - (24 * 25) = 900- 600= 
<gadget id="calculator">900- 600</gadget>
<output>300</output>
300   Required average= (300/20)= 
<gadget id="calculator">(300/20)</gadget>
<output>15</output>
15   Answer: 15
<result>D</result>
The average of 45 students in a class is 15 years. The average age of 25 students is 24. What is the average age of remaining 20 students?