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

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