Question
Jen and Flynn have a bicycle race. Jen cycles at a speed of 15 km/h. Flynn cycles at a speed of 25 km/h. If Flynn lets Jen start 40 min before him, how long will Flynn take to catch up with Jen?
3 m

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Jen and Flynn have a bicycle race. Jen cycles at a speed of 15 km/h. Flynn cycles at a speed of 25 km/h. If Flynn lets Jen start 40 min before him, how long will Flynn take to catch up with Jen?