The diagram shows an empty fish tank in the shape of a rectangular prism. The tank is being filled from a tap. Water flows into the tank at a constant rate of 0.5 litres per second.

How long will it take for the fish tank to be filled completely?
Practise Edexcel GCSE Maths Volume of a Prism with exam-style questions for Foundation and Higher tier. 46 questions, matched to the Edexcel GCSE Maths (1MA1) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.