Question
Risa and Sam have a bicycle race. Risa cycles at a speed of 20 km/h. Sam cycles at a speed of 24 km/h. If Sam lets Risa start 48 min before him, how long will Sam take to catch up with Risa?
3 m

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Risa and Sam have a bicycle race. Risa cycles at a speed of 20 km/h. Sam cycles at a speed of 24 km/h. If Sam lets Risa start 48 min before him, how long will Sam take to catch up with Risa?