B completes a work in 8 days

B completes a work in 8 days. A alone can do it in 10 days. If both work together, the work can be completed in how many days?

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 #4404