Mr Lu used two printers with different printing rates for a printing job. He started Printer F at 20 10 and started Printer G two minutes later. He stopped both printers at 20 15. 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 F at the time Mr Lu started Printer G?
- What was the difference in the number of pages printed by the two printers from 20 10 to 20 15?
- Which printer, F or G, has a slower 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)