In what time will a railway train 80 m long moving at…

In what time will a railway train 80 m long moving at the rate of 40 kmph pass a telegraph post on its way?

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 #47719