When n is divided by 15, the remainder is 6

When n is divided by 15, the remainder is 6. When n is divided by 12, the quotient is equal to Z, and the remainder is equal to 6. Z must be divisible by which of the following numbers?

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 #48018