Mr Chen used two printers with different printing rates for a printing job. He started Printer H at 20 42 and started Printer J one minute later. He stopped both printers at 20 47. 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 H at the time Mr Chen started Printer J?
- What was the difference in the number of pages printed by the two printers from 20 42 to 20 47?
- Which printer, H or J, 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)