# Tourist Jirka

Distance between the points A and B is 13.5 km. Jirka went from point A to point B unknown speed and for an unknown period of time. Back to the point A went slower by 3 km/h which means that went 20 minutes more.

How long Jirka took the return journey?

How long Jirka took the return journey?

### Correct answer:

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