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Reading from Behind
Age 11 to 14
ShortChallenge Level 
The ten digits of a digital clock are shown below.
I have a 12 hour digital clock which shows the time, using four digits, on a piece of glass, so it can be seen from both sides.
At what time between 3 o'clock and 10 o'clock will the time look the same from both sides?
If you liked this problem, here is an NRICH task which challenges you to use similar mathematical ideas.
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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