The average age of 15 students of a class is 15 years. Out of these, the average age of 8 students is 14 years and that of the other 6 students is 16 years. The age of the 15th student is	Options.
A) 9 years  B) 11 years  C) 17 years  D) 21 years  E) 25 years
Solution   Age of the 15th student	=[15x15-(14x8+16x6)]   = (225 - 208)= 
<gadget id="calculator">(225 - 208)</gadget>
<output>17</output>
17 years.   Answer 17 years
<result>C</result>
The average age of 15 students of a class is 15 years. Out of these, the average age of 8 students is 14 years and that of the other 6 students is 16 years. The age of the 15th student is