If the given two numbers are respectively 7% and 28% of a…

If the given two numbers are respectively 7% and 28% of a third number, then what percentage is the first of the second ?

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 #10115