Mr Sih used two printers with different printing rates for a printing job. He started Printer Z at 15 04 and started Printer A three minutes later. He stopped both machines at 15 09. 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 Z at the time Mr Sih started Printer A?
- What was the difference in the number of pages printed by the two machines from 15 04 to 15 09?
- Which printer, Z or A, has a faster 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)