Printer A can print 40 pages for 2 minutes. Which means it prints 20 pages per minute. 100 divided by 20 = 5. Then the answer is 5 minutes.
Explanation:
Printer A Prints 40 pages every 2 minutes. 40 divided by 2 = 20. Which means its 20 pages per 1 minute. 100 divided by 20 = 5. Answer is 5 mins.