Mr Lau used two printers with different printing rates for a printing job. He started Printer M at 22 01 and started Printer N three minutes later. He stopped both printers at 22 06. 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 M at the time Mr Lau started Printer N?
- What was the difference in the number of pages printed by the two printers from 22 01 to 22 06?
- Which printer, M or N, has a faster printing rate? What is the difference in the number of pages printed by the printers in one minute? Give your answer in this format. (Eg A, 1)