If the simple interest on a certain sum of money for 4…

If the simple interest on a certain sum of money for 4 years is one–fifth of the sum, then the rate of interest per annum 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 #6739