Mr Lau used two printers with different printing rates for a printing job. He started Printer D at 10 38 and started Printer E two minutes later. He stopped both machines at 10 43. 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 D at the time Mr Lau started Printer E?
- What was the difference in the number of pages printed by the two machines from 10 38 to 10 43?
- Which printer, D or E, 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)