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?	Pick
A) 39
B) 41
C) 45
D) 42
E) 50

Rationale: "age of the 15 th student = 17 * 15 - ( 14 * 5 + 16 * 9 ) = 255 - 214 = 41 years answer is b"
Answer: B