the banker ' s gain on a bill due due 1 year hence at 12 % per annum is rs . 8.4 . the true discount is
"solution t . d = [ b . g x 100 / r x t ] = rs . ( 8.4 x 100 / 12 x 1 ) = rs . 70 . answer a"
divide(8.4, divide(12, const_100))