Question
Wendy and Perry have a bicycle race. Wendy cycles at a speed of 15 km/h. Perry cycles at a speed of 24 km/h. If Perry lets Wendy start 36 min before him, how long will Perry take to catch up with Wendy?
3 m

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Wendy and Perry have a bicycle race. Wendy cycles at a speed of 15 km/h. Perry cycles at a speed of 24 km/h. If Perry lets Wendy start 36 min before him, how long will Perry take to catch up with Wendy?