the true discount on a bill of rs . 2260 is rs . 360 . what is the banker ' s discount ?
"explanation : f = rs . 2260 td = rs . 360 pw = f - td = 2260 - 360 = rs . 1900 true discount is the simple interest on the present value for unexpired time = > simple interest on rs . 1900 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 . 2260 for unexpired time = 360 / 1900 × 2260 = 0.19 × 2260 = rs . 428 answer : option a"
multiply(divide(360, subtract(2260, 360)), 2260)