Question
Sarah and Tommy have a bicycle race. Sarah cycles at a speed of 15 km/h. Tommy cycles at a speed of 18 km/h. If Tommy lets Sarah start 36 min before him, how long will Tommy take to catch up with Sarah?
3 m

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Sarah and Tommy have a bicycle race. Sarah cycles at a speed of 15 km/h. Tommy cycles at a speed of 18 km/h. If Tommy lets Sarah start 36 min before him, how long will Tommy take to catch up with Sarah?