Question
Shannon and Rael have a bicycle race. Shannon cycles at a speed of 15 km/h. Rael cycles at a speed of 17 km/h. If Rael lets Shannon start 40 min before him, how long will Rael take to catch up with Shannon?
3 m

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Shannon and Rael have a bicycle race. Shannon cycles at a speed of 15 km/h. Rael cycles at a speed of 17 km/h. If Rael lets Shannon start 40 min before him, how long will Rael take to catch up with Shannon?