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Sunday, May 3, 2015

Brain Teaser 5/4/2015

"About Time"

1. Two cyclists are racing around a circular track. Pierre can ride once around the track in 6 minutes, Louis takes 4 minutes. How many minutes will it take for Louis to lap Pierre?

2. A snail is at the bottom of a well 30 feet deep. It crawls up 3 feet each day, but at night, it slips down 2 feet. How long does it take for the snail to crawl out the well?
Solution
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