Mr Chua used two printers with different printing rates for a printing job. He started Printer Q at 17 50 and started Printer R two minutes later. He stopped both machines at 17 55. 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 Q at the time Mr Chua started Printer R?
- What was the difference in the number of pages printed by the two machines from 17 50 to 17 55?
- Which printer, Q or R, 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)