A sum fetched a total simple interest of Rs. 4016.25 at the rate of 9 p.c.p.a. in 5 years. What is the sum?  Choose the most appropriate option.
A) rs 4462.50  B) rs . 8032.50  C) rs . 8900  D) rs . 8925  E) none

Rationale: "solution principal = rs . ( 100 * 4016.25 / 9 * 5 ) = rs . ( 401625 / 45 ) = rs . 8925 answer d"
Answer: D