Question
Xandra and Sam have a bicycle race. Xandra cycles at a speed of 18 km/h. Sam cycles at a speed of 23 km/h. If Sam lets Xandra start 50 min before him, how long will Sam take to catch up with Xandra?
3 m

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Xandra and Sam have a bicycle race. Xandra cycles at a speed of 18 km/h. Sam cycles at a speed of 23 km/h. If Sam lets Xandra start 50 min before him, how long will Sam take to catch up with Xandra?