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# Bike Shop

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Age 14 to 16

ShortChallenge Level

- Problem
- Solutions

I walked to the bike shop at a speed of 3 miles per hour, and cycled back along the same route at a speed of 12 miles per hour.

What was my average speed for the round trip?

This problem is taken from the UKMT Mathematical Challenges.

You can find more short problems, arranged by curriculum topic, in our short problems collection.