Beach Day by Rodger Bliss
September 2022
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Cogs

I have a machine which has four sequential cog wheels in constant mesh.

The largest cog has 21 teeth and the others have 17, 12 and 10 respectively.

What is the fewest number of revolutions the largest cog must make so that all of the cogs are back

in their starting position?

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3 guesses to Cogs


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  • nibroc1

    97.14 (LCD of 17,12 and 10 divided by 21)

  • Dude

    Nope, that’s not it, keep trying.

  • anant

    The largest cog must take 340 revolutions