New Mexicans for Science and Reason
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Next Puzzle Posting: September 8th, 2017
AUGUST 2017 PUZZLE - "Uphill Both Ways"
Submitted by Dave Thomas
A commuter using a bicycle has a two-mile ride to work. Going to the office, the path is level for a half mile, then runs uphill at a 10% grade for one mile, then downhill at a 10% grade for a quarter mile, and finally uphill for a quarter mile at a 20% grade. The commuter goes ten mph on a level surface, half that for a 10% uphill grade, three-halves that for a 10% downhill grade, and one-quarter that for a 20% uphill grade. For a 20% downhill grade, the rider purposely limits his speed to no more than that for the 10% downhill grade.
The August Bonus:
Hall of Fame (August Puzzle Solvers):
Mike Arms (NM)
Terry Lauritsen (NM)
Keith Gilbert (NM)
Rocky S. Stone (NM)