A sum fetched a total simple interest of $4106.25 at the rate of 9 p.c.p.a. in 5 years. What is the sum?
Pick.
A) $ 8829  B) $ 2840  C) $ 6578  D) $ 7782  E) $ 8927

Rationale: "e 8927 principal = $ 100 x 4106.25 / 9 x 5 = $ 410625 / 45 = $ 8927 ."
Answer: E