Question
Carl's bus uses 4 ℓ of petrol to travel a distance of 60 km. At this rate, how far can his bus travel on 21 ℓ of petrol?
2 m

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Carl's bus uses 4 ℓ of petrol to travel a distance of 60 km. At this rate, how far can his bus travel on 21 ℓ of petrol?