Pipe A can fill a tank in 32 minutes

Pipe A can fill a tank in 32 minutes. Pipe B can fill the same tank 4 times faster than pipe A. If both the pipes are connected to the tank so that they fill the tank simultaneously, how long will it take for the empty tank to overflow?

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #51780