galaxyphoton galaxyphoton

10-04-2017
Mathematics

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The school playground is in the shape of a pentagon. There is a drinking fountain at each of the 5 corners of the playground. There is a path that connects each water fountain. How many ways can someone walk from one drinking fountain to another drinking fountain without retracing their steps and while staying on the path?

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kingremix389 kingremix389

10-04-2017

The answer is 21 save

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