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The pencil (Posted on 2004-02-23) Difficulty: 3 of 5
I have a pencil that always rolls around on a slanted surface. One end is wider and heavier than the other. So whenever it rolls, it goes in a wide circle. Otherwise, the pencil is featureless, only becoming steadily wider towards one end.

The difference between the two diameters on the two ends is exactly 144 times smaller than the length of the pencil. If the pencil is pointing uphill on a slanted surface, how many times will it spin until it points downhill?

See The Solution Submitted by Tristan    
Rating: 4.0000 (6 votes)

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  Subject Author Date
simply put solutionDan Porter2004-02-28 22:39:58
re(2): But on the other hand....Penny2004-02-28 08:59:49
re: But on the other hand....nikki2004-02-26 17:47:21
re: But on the other hand....Brian Wainscott2004-02-24 14:57:06
But on the other hand....Penny2004-02-24 14:18:03
re(2): Trying to be even more exactThalamus2004-02-24 12:57:25
Hints/Tipsre(6): engl. unutsAdy TZIDON2004-02-24 11:53:59
re(5): Trying to be even more exact - dumb questionfwaff2004-02-24 11:02:30
re(4): Trying to be even more exactCharlie2004-02-24 10:53:25
re(3): Trying to be even more exactfwaff2004-02-24 10:49:17
re(2): Trying to be even more exactPenny2004-02-24 09:44:52
re: Trying to be even more exactCharlie2004-02-24 08:21:02
My thoughtRoberto Mattos2004-02-23 17:59:53
SolutionTrying to be even more exactPenny2004-02-23 17:15:04
SolutionTrying to be exact.Charlie2004-02-23 15:29:48
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