A,B,C together can do a work in 30 days

A,B,C together can do a work in 30 days. A alone can do the work in 80 days and B alone can do the same work in 100 days. Find in what time C alone can do that work?

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #37714