The true discount on a bill of Rs. 2560 is Rs. 360. What is the banker's discount?
Choose the correct choice from the following.
A) rs . 432  B) rs . 422  C) rs . 419  D) rs . 442  E) none of these

Rationale: "explanation : f = rs . 2560 td = rs . 360 pw = f - td = 2560 - 360 = rs . 2200 true discount is the simple interest on the present value for unexpired time = > simple interest on rs . 2200 for unexpired time = rs . 360 banker ' s discount is the simple interest on the face value of the bill for unexpired time = simple interest on rs . 2160 for unexpired time = 360 / 2200 × 2560 = 0.16 × 2560 = rs . 419 answer : option c"
Answer: C