Question
Nick and Riordan each had the same volume of water. The water was used to pour into identical bottles. Nick filled up 13 bottles and had 2.5 ℓ of water left. Riordan filled up 9 bottles and had 4.5 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 Nick and Riordan had at first? Give your answer in litres.
4 m
(a)

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Nick and Riordan each had the same volume of water. The water was used to pour into identical bottles. Nick filled up 13 bottles and had 2.5 ℓ of water left. Riordan filled up 9 bottles and had 4.5 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 Nick and Riordan had at first? Give your answer in litres.