SOLUTION: Three wheels make 60, 36 and 24 revolutions per minute. Each has a red spot on its rim, which is at the lowest position at time zero. The red spot will all be at this position agai
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Question 596278: Three wheels make 60, 36 and 24 revolutions per minute. Each has a red spot on its rim, which is at the lowest position at time zero. The red spot will all be at this position again after:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Three wheels make 60, 36 and 24 revolutions per minute. Each has a red spot on its rim, which is at the lowest position at time zero. The red spot will all be at this position again after:
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Find the least common multiply of the three numbers:
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60 = 2^2*3*5
36 = 2^2*3^2
24 = 2^3*3
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The lcm = 2^3*3^2*5 = 8*9*5 = 360
The red spots will align after 360 revolutions.
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Cheers,
Stan H.
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