A man swims downstream 30 km and upstream 18 km taking 3…

A man swims downstream 30 km and upstream 18 km taking 3 hours each time, what is the speed of the man in still water?

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 #2894

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