Question
Cole and Julian each had the same volume of water. The water was used to pour into identical bottles. Cole filled up 20 bottles and had 4.5 ℓ of water left. Julian filled up 12 bottles and had 8.5 ℓ of water left.
  1. What was the capacity of each bottle? Give your answer in millilitres.
  2. What was the total volume of water Cole and Julian had at first? Give your answer in litres.
4 m
(a)

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Cole and Julian each had the same volume of water. The water was used to pour into identical bottles. Cole filled up 20 bottles and had 4.5 ℓ of water left. Julian filled up 12 bottles and had 8.5 ℓ of water left.
  1. What was the capacity of each bottle? Give your answer in millilitres.
  2. What was the total volume of water Cole and Julian had at first? Give your answer in litres.