Question
Beaker H had 1 ℓ of water at first. Jean poured some water from beaker J to H until beaker H is filled with 5 ℓ of water. There were 4 ℓ of water left in beaker J. How many litres of water were there in beaker J at first?
3 m

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Beaker H had 1 ℓ of water at first. Jean poured some water from beaker J to H until beaker H is filled with 5 ℓ of water. There were 4 ℓ of water left in beaker J. How many litres of water were there in beaker J at first?