The banker's gain on a sum due 6 years hence at 12% per annum is Rs. 540. What is the banker's discount?
Choose the correct choice from the following options.
A) 1240  B) 1120  C) 1190  D) 1290  E) none of these

Rationale: "explanation : td = ( bg × 100 ) / tr = ( 540 × 100 ) / ( 6 × 12 ) = ( 90 × 100 ) / 12 = ( 15 × 100 ) 2 / = rs . 750 bg = bd – td = > 540 = bd - 750 = > bd = 540 + 750 = 1290 answer : option d"
Answer: D