The average age of 17 persons in a office is 15 years. Out of these, the average age of 5 of them is 14 years and that of the other 9 persons is 16 years. The age of the 15th person is? Select the correct option
A) 39
B) 41
C) 45
D) 42
E) 50
Age of the 15th student = 17*15 - (14*5+16*9) = 255-214= 
<gadget id="calculator">255-214</gadget>
<output>41</output>
41 years   Answer is 41
<result>B</result>
The average age of 17 persons in a office is 15 years. Out of these, the average age of 5 of them is 14 years and that of the other 9 persons is 16 years. The age of the 15th person is?