Find banker’s discount from banker’s gain: The banker’s gain on a sum due 3 years hence at 12% per annum is ₹360. Compute the banker’s discount.

Introduction / Context:
From BG and r t we can find the face value A, and then compute BD = A * r t. This question emphasizes the utility of the BG identity in reverse.

Given Data / Assumptions:
t = 3 years; r = 12% ⇒ r t = 0.36; BG = ₹360.

Concept / Approach:

Step-by-Step Solution:

Verification / Alternative check:
TD = BD − BG ≈ 1360 − 360 = ₹1000; TD should also equal A * 0.36 / 1.36 ≈ 1000 (checks).

Final Answer:
Rs. 1360