Lemma
MediumRatio & rate
AQuA-RAT train #3291 · 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 7 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 #3291

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