Important formulae (i) The true discount on a bill of Rs.540 is Rs.90. The banker's discount is (i)`Rs.60` (ii)`Rs.108` (iii)`Rs.110` (iv)`Rs.112`

Miscellaneous (i) The present worth of a certain sum due sometime hence is Rs.1600 and true discount is Rs160. The banker's gain is (i) Rs.20 (ii) Rs.24 (iii) Rs.16 (iv) Rs.12

The banker's discount on a bill due 4 months hence at 15% is Rs 420. The true discount is (a) Rs 400 (b) Rs 360 (c) Rs 480 (d) Rs 320