Lemma
MediumRatio & rate
AQuA-RAT train #71539 · Arithmetic · Ratio & rate

Two trains are running at 40 km/hr and 20 km/hr respectively in…

Two trains are running at 40 km/hr and 20 km/hr respectively in the same direction. Fast train completely passes a man sitting in the slower train in 10 sec. What is the length of the fast train?

This problem repeats another one in the library (at most with different numbers), so it's left out of browsing.

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #71539

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