The salary of A, B, C, D, E is Rs. 9000, Rs. 5000, Rs. 11000, Rs. 7000, Rs. 9000 per month respectively, then the average salary of A, B, C, D, and E per month is  Choose the correct choice from the following answers:
A) rs . 7000
B) rs . 8200
C) rs . 8500
D) rs . 9000
E) none

Rationale: "answer average salary = 9000 + 5000 + 11000 + 7000 + 9000 / 5 = rs . 8200 correct option : b"
Answer: B