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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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Hints/Tips re(6): engl. unuts | Comment 9 of 15 |
(In reply to re(5): Trying to be even more exact - dumb question by fwaff)


English units

Principal system of weights and measures used in a few nations, the only major industrial one being the United States. It actually consists of two related systems-
the U.S. Customary System of units, used in the United States and dependencies, and the British Imperial System. The names of the units and the relationships between them are generally the same in both systems, but the sizes of the units differ, sometimes considerably


FYI



ady
Edited on February 24, 2004, 11:59 am
  Posted by Ady TZIDON on 2004-02-24 11:53:59

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