Bruno and Sacha are running in the same direction around a stadium

Bruno and Sacha are running in the same direction around a stadium. Sacha runs at a constant speed of 6 meters per second, and Bruno runs at a constant speed of 5 meters per second. At a certain point Sacha overtakes Bruno. If four minute afterward, Sacha stops and waits for Bruno to reach him, then how many seconds does he have to wait?

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #5510