Bankers Discount - General Aptitude

Q1:

The present worth of a certain bill due sometime hence is Rs. 800 and the true discount is Rs. 36. The banker's discount is:

A Rs. 37

B Rs. 37.62

C Rs. 34.38

D Rs. 38.98

ANS:B - Rs. 37.62

B.G. = (T.D.)2 = Rs. 36 x 36 = Rs. 1.62
P.W. 800
B.D. = (T.D. + B.G.) = Rs. (36 + 1.62) = Rs. 37.62