A works twice as fast as B.If B can complete a work…

A works twice as fast as B.If B can complete a work in 18 days independently,the number of days in which A and B can together finish the work is:

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 #59015