A man in train notice that he can count 51 telephone posts…

A man in train notice that he can count 51 telephone posts in 1 minute. If they are known to be 40 meters apart,then at what speed is the train traveling?

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 #59558