Rates, SM-Bank 050 Convert 4 litres per minute into litres per hour. (2 marks) Show Answers Only \(240\ \text{L/}\text{hour}\) Show Worked Solution \(4\ \text{L/minute}\) \(=4\times 60\ \text{L/}60\ \text{minutes}\) \(=240\ \text{L/}\text{hour}\)