Beach Day by Rodger Bliss
December 2023
S M T W T F S
 12
3456789
10111213141516
17181920212223
24252627282930
31  

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?

Submit your Guess

 

 

 

You can use these HTML tags

<a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>

3 guesses to Cogs


    Warning: Use of undefined constant bfa_comments - assumed 'bfa_comments' (this will throw an Error in a future version of PHP) in /home/customer/www/riddledude.com/public_html/wp-content/themes/atahualpa/comments.php on line 132
  • 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