If the cost price of 11 pens is equal to the selling…

If the cost price of 11 pens is equal to the selling price of 10 pens, the gain percent is:

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 #12131

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