If a sum of money doubles itself in 8 years at simple…

If a sum of money doubles itself in 8 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 #9130