Mr Yang used two printers with different printing rates for a printing job. He started Printer U at 18 20 and started Printer V one minute later. He stopped both copiers at 18 25. 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 U at the time Mr Yang started Printer V?
- What was the difference in the number of pages printed by the two copiers from 18 20 to 18 25?
- Which printer, U or V, has a slower printing rate? What is the difference in the number of pages printed by the copiers in one minute? Give your answer in this format. (Eg A, 1)