Question
Hilda and Luke have a bicycle race. Hilda cycles at a speed of 15 km/h. Luke cycles at a speed of 22 km/h. If Luke lets Hilda start 28 min before him, how long will Luke take to catch up with Hilda?
3 m

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Hilda and Luke have a bicycle race. Hilda cycles at a speed of 15 km/h. Luke cycles at a speed of 22 km/h. If Luke lets Hilda start 28 min before him, how long will Luke take to catch up with Hilda?