The average age of 15 students of a class is 15 years. Out of these, the average age of 5 students is 14 years and that of the other 9 students is 16 years. Tee age of the 15th student is:
Choose the correct choice.
A) 18 years. B) 11 years. C) 21 years. D) 36 years. E) 58 years.
Age of the 15th student=   [15 * 15 - (14 * 5 + 16 * 9)] = (225 - 214)= 
<gadget id="calculator">(225 - 214)</gadget>
<output>11</output>
11 years.   Answer: 11 years.
<result>B</result>
The average age of 15 students of a class is 15 years. Out of these, the average age of 5 students is 14 years and that of the other 9 students is 16 years. Tee age of the 15th student is: