A can do a piece of work in 12 days and B…

A can do a piece of work in 12 days and B alone can do it in 14 days. How much time will both take to finish the work ?

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 #27487