If difference between compound interest and simple interest on a sum at…

If difference between compound interest and simple interest on a sum at 10% P.a. for 2 years is Rs.61 then sum is

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 #9252