A sum fetched total simple interest of 4016.25 at the rate of 13 p.c.p.a. in 5 years. What is the sum?  Choose the correct choice from the following answers:
A) 6178.85
B) 8032.5
C) 4462.5
D) 8900
E) none of these

Rationale: "let the sums be p . now , 65 % of p = 4016.25 or , p = 6178.85 answer a"
Answer: A