Revision history of "Jogging a hill"

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  • (cur | prev) 13:00, 19 August 2010Oscarlevin (talk | contribs). . (540 bytes) (+540). . (Created page with 'I think I originally heard this one on Car Talk. ==Puzzle== Sally has decided to go for a jog. At first she runs on completely flat ground, and then to the top of a hill. Then ...')