This is a great puzzle from the fantastic math website transum.org, a fantastic website with lots of great math tools, resources, and puzzles!
My clock does not have any numbers on its face, just markers for each hour/five-minute interval. I looked at it in a mirror one morning and noted the time it appeared to be showing. An hour and a half later while eating breakfast in the kitchen I noticed the clock on my phone is showing the time the reflected clock appeared to show earlier. Assuming that both clock and phone were showing the accurate time, what time was it when I first viewed my clock in the mirror?
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Puzzle of the WeekEach week on the main floor, a new puzzle or problem is posted for our whole school to work on. Please check it out! Previous puzzles will be posted here, along with puzzles at different levels. Please use the "Categories" below to find puzzles for your age group or strand. Archives
September 2018
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