12 is 4% of a, and 4 is 12% of b

12 is 4% of a, and 4 is 12% of b. c equals b/a. What is the value of c?

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 #48503