One-third of a two digit number exceeds its one fourth by 6

One-third of a two digit number exceeds its one fourth by 6. What is the sum of the digits of the number?

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 #49565