Twenty four men can do a work in 35 days

Twenty four men can do a work in 35 days. How many men are required to complete the work in 21 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 #21594