Question
Julie and Elijah have a bicycle race. Julie cycles at a speed of 20 km/h. Elijah cycles at a speed of 25 km/h. If Elijah lets Julie start 30 min before him, how long will Elijah take to catch up with Julie?
3 m

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Julie and Elijah have a bicycle race. Julie cycles at a speed of 20 km/h. Elijah cycles at a speed of 25 km/h. If Elijah lets Julie start 30 min before him, how long will Elijah take to catch up with Julie?