Question
Gabby and Albert have a bicycle race. Gabby cycles at a speed of 15 km/h. Albert cycles at a speed of 19 km/h. If Albert lets Gabby start 48 min before him, how long will Albert take to catch up with Gabby?
3 m

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Gabby and Albert have a bicycle race. Gabby cycles at a speed of 15 km/h. Albert cycles at a speed of 19 km/h. If Albert lets Gabby start 48 min before him, how long will Albert take to catch up with Gabby?