The banker's gain on a bill due due 1 year hence at 12% per annum is Rs.6.6. The true discount is	Options:
A) rs . 72
B) rs . 36
C) rs . 55
D) rs . 50
E) none

Rationale: solution t . d = [ b . g x 100 / r x t ] = rs . ( 6.6 x 100 / 12 x 1 ) = rs . 55 . answer c
Answer: C