The banker's gain on a sum due 3 years hence at 12% per annum is Rs. 360. The banker's discount is:

Answer: Option A

BG = Rs. 360
T = 3 years
R = 12%
$$\begin{array}{rl}& TD=\frac{BG\times 100}{TR}\\ & =\frac{360\times 100}{3\times 12}\\ & =\text{Rs}\text{. }1000\end{array}$$
BG = BD - TD
⇒ BD = BG + TD = 360 + 1000 = Rs. 1360