Mr Tang used two printers with different printing rates for a printing job. He started Printer J at 13 44 and started Printer K two minutes later. He stopped both machines at 13 49. The graphs show the total number of pages printed by each printer from the start of printing.
- How many pages had been printed by Printer J at the time Mr Tang started Printer K?
- What was the difference in the number of pages printed by the two machines from 13 44 to 13 49?
- Which printer, J or K, has a slower printing rate? What is the difference in the number of pages printed by the machines in one minute? Give your answer in this format. (Eg A, 1)