The average age of 16 students of a class is 16 years. Out of these, the average age of 5 students is 14 years and that of the other 9 students is 16 years, The age of the 12th student is  Choices:	A) 11	B) 66	C) 18	D) 16	E) 42
Explanation:   Age of the 16th student = [16 * 16 - (14 * 5 + 16 * 9)] = (256-214)= 
<gadget id="calculator">(256-214)</gadget>
<output>42</output>
42 years.   Answer: 42
<result>E</result>
The average age of 16 students of a class is 16 years. Out of these, the average age of 5 students is 14 years and that of the other 9 students is 16 years, The age of the 12th student is