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Posted: Mon Feb 03, 2020 6:52 pm |
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Joined: Thu Mar 14, 2019 10:59 am Posts: 16
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The large cog has 8 grooves and small cog has 6 grooves . The large cog makes 15 complete revolutions. At the same time how many complete revolutions does the small cog make ?
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loobylou
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Posted: Mon Feb 03, 2020 11:05 pm |
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Joined: Thu Nov 27, 2014 5:04 pm Posts: 1986
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I'm no maths expert but I would do: For every full rotation the big cog does, the little one has to do 8/6 (It has to do more because it's smaller and the proportion has to be 8:6). The big cog does 15, so the little one does 8/6 x 15 = 4/3 x 15 = 60/3 = 20
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