Question
A flask can fill up 4 cups. A pail can fill up 2 cups. 1 flask and 3 pails can fill up a tank. How many cups are needed to fill up the tank?
4 m

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A flask can fill up 4 cups. A pail can fill up 2 cups. 1 flask and 3 pails can fill up a tank. How many cups are needed to fill up the tank?