What is the rate percent when the simple interest on Rs.4000 amount…

What is the rate percent when the simple interest on Rs.4000 amount to Rs.320 in 2 Years?

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 #9048