Question
Carl and Oliver each had the same volume of water. The water was used to pour into identical bottles. Carl filled up 13 bottles and had 3.1 ℓ of water left. Oliver filled up 9 bottles and had 6.3 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 Carl and Oliver had at first? Give your answer in litres.
4 m
(a)

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Carl and Oliver each had the same volume of water. The water was used to pour into identical bottles. Carl filled up 13 bottles and had 3.1 ℓ of water left. Oliver filled up 9 bottles and had 6.3 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 Carl and Oliver had at first? Give your answer in litres.