Question
Caleb has 2 containers. Container Q and Container R are of different capacities. If Container Q is filled by a tap at a rate of 5 litres per minute and Container R is filled by a tap at a rate of 6 litres per minute, when Container Q is completely filled, 6 litres of water flowed out from Container R. If Container Q is filled by a tap at a rate of 6 litres per minute and Container R is filled by a tap at a rate of 2 litres per minute, when Container Q is completely filled, Container R is only one-third-filled. What is the capacity of Container R? Express your answer in litres.
3 m

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Caleb has 2 containers. Container Q and Container R are of different capacities. If Container Q is filled by a tap at a rate of 5 litres per minute and Container R is filled by a tap at a rate of 6 litres per minute, when Container Q is completely filled, 6 litres of water flowed out from Container R. If Container Q is filled by a tap at a rate of 6 litres per minute and Container R is filled by a tap at a rate of 2 litres per minute, when Container Q is completely filled, Container R is only one-third-filled. What is the capacity of Container R? Express your answer in litres.