If a sum of money doubles itself in 20 years at simple…

If a sum of money doubles itself in 20 years at simple interest, the ratepercent 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 #144