I THINK 10 HOURS IS CORRECT. AM I WRONG?

Jim wants to open a print shop, and is considering to purchase two identical printers, each costs $600. On average, it costs $0.20 to print a page (cost of labor, paper, energy, etc.) The average revenue for printing a page is $0.3. The service process of the print shop can be described by the following flow chart, with the process times of both printers being 2 secondslrgge. Suppose that both printers operate at the utilization 15%. Printer 1 2 sec per page Printer 2 2 sec per page How many hours of operation are required for the print shop to break even? Note: 1 - Round your final answer to the nearest integer; do not round intermediate numbers. 2 - Ignore any cost that is not mentioned in the question. 3 - Do not consider the time required for any operation other than printing; they have been accounted for by the given process times and utilization. 4 - One hour = 60 minutes = 3600 second. 5. Hint: What is the output rate of the business process