Question
A flask contains some coffee.
Adam drinks 49 litre of coffee.
Bryan drinks 310 litre of coffee.
There is 12 litre of coffee left in the flask.
How much coffee is there at first in ℓ?
Give the answer in fraction.
2 m

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A flask contains some coffee.
Adam drinks 49 litre of coffee.
Bryan drinks 310 litre of coffee.
There is 12 litre of coffee left in the flask.
How much coffee is there at first in ℓ?
Give the answer in fraction.