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

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