A sum fetched a total simple interest of $4061.25 at the rate of 9 p.c.p.a. in 5 years. What is the sum?  Choose the correct choice from the following: A) $ 8829 B) $ 2840 C) $ 6578 D) $ 7782 E) $ 8926

Rationale: "e 8926 principal = $ 100 x 4016.25 / 9 x 5 = $ 406125 / 45 = $ 8926 ."
Answer: E