Question
Diana and Neave have a bicycle race. Diana cycles at a speed of 15 km/h. Neave cycles at a speed of 21 km/h. If Neave lets Diana start 48 min before him, how long will Neave take to catch up with Diana?
3 m

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Diana and Neave have a bicycle race. Diana cycles at a speed of 15 km/h. Neave cycles at a speed of 21 km/h. If Neave lets Diana start 48 min before him, how long will Neave take to catch up with Diana?