Illuminations: Belts

Belts

Wheels A, B, C, and D are connected with belts as shown. If wheel A starts to rotate clockwise as the arrow indicates, can all 4 wheels rotate? If so, which way does each wheel rotate?

Can all the wheels turn if all 4 belts are crossed? If 1 or 3 belts are crossed?

Puzzle provided by Kordemsky: The Moscow Puzzles (Dover)

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Illuminations (National Council of Teachers of Mathematics)

National Council of Teachers of Mathematics

Illuminations works to serve you by increasing access to quality standards-based resources for teaching and learning mathematics, including interactive tools for students and instructional support for teachers.

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National Council of Teachers of Mathematics

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