If 8 men or 12 women can do a piece of work…

If 8 men or 12 women can do a piece of work in 15 days, in how many days can the same work be done by 6 men and 11 women?

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 #47272