Videos Test Yourself Books MathFacts Math Diagnostics Math Tricks Daily PhysEd
Class Photos Worksheets Insectclopedia Musiclopedia More Resources Teacher Timesavers Study Guides
Wind Surfing
Thanks  Aqua Man

wind surfer

Kevin wind surfs 1 km in three minutes with the wind at his back.
It takes him four minutes to return against the wind.

Quetion :
How long would it take Kevin to wind surf 1 km if there was not any wind?

See answer


Math Puzzles