# Glass Pouring

Logic Level 2

Coach Newton sets up $$10$$ glasses arranged in a triangle as shown, with the glasses numbered $$2, 3, 7, 8, 9$$ and $$10$$ full of water and the others empty. He challenges the team to rearrange the glasses into the second configuration shown, with full glasses at positions $$B, C, E, G, H$$ and $$I$$, and in which the triangle points in the opposite direction.

What is the smallest number of glasses the students can move to perform Coach Newton’s challenge?

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