The true discount on a bill of Rs

The true discount on a bill of Rs. 2560 is Rs. 360. What is the banker's discount?

This problem repeats another one in the library (at most with different numbers), so it's left out of browsing.

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #42855