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Age 14 to 16 Short
Challenge Level
Beatrix has a 24-hour digital clock on a glass table-top next to her desk.When she looked at the clock at 13:08, she noticed that the reflected display also read 13:08, as shown.
How many times in a 24-hour period do the display and its reflection give the same time?
This problem is taken from the UKMT Mathematical Challenges.
You can find more short problems, arranged by curriculum topic, in our short problems collection.
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NRICH is part of the family of activities in the Millennium Mathematics Project.
NRICH is part of the family of activities in the Millennium Mathematics Project.