If Re.5 amounts to Rs.20 over a period of 3 years

If Re.5 amounts to Rs.20 over a period of 3 years. What is the rate of simple interest?

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

~8 minAnswer checked instantly

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #90457

Stuck? A gentle nudge

No hints for this one.

Something off?

Workspace

Your answer

Checked against the answer in AQuA-RAT.