Find the percentage gain if a shop owner sells 39 mtr of…

Find the percentage gain if a shop owner sells 39 mtr of fabric and gains Cost Price of 12 meters?

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 #48337

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