Monday, May 19, 2008

Question 4 - Picto puzzle

I have a machine which has four cog wheels in constant mesh. The largest cog has 72 teeth and the others have 36, 25 and 15 respectively. How many revolutions must the largest cog make before each of the cogs is back in its starting position?

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3 comments:

Anonymous said...

LCM = 1800

Divide that by 72, you get 25 revolutions.

May 20, 2008 at 8:02 PM
Avan said...

ya lcm of all 1800 divide by 72 tht is 25

May 20, 2008 at 8:08 PM
Craigo said...

Ambiguous. Cannot be specifically answered. There is no information stating which gear is driven by which other gear.

May 15, 2021 at 11:13 AM

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