Five gears are arranged in a straight horizontal line, touching sequentially from left to right (1 to 5). Gear 1 is turned clockwise. In which direction does gear 5 rotate?
Clockwise
Gear 1 turns clockwise, forcing Gear 2 to turn counter-clockwise, Gear 3 to turn clockwise, Gear 4 counter-clockwise, and Gear 5 clockwise. With an odd number of gears in a linear chain, the first and last gears rotate in the same direction.
About this riddle
Logic riddles give you a few facts and ask what must be true. List what you know, cross out what cannot be, and see what is left.
Difficulty: Medium. More like this: Logic riddles with answers or try Einstein's Logic Grid for a different kind of puzzle.
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