Assume that you have a printer that can print an average file in two minutes. Every two and a

half minutes a user sends another file to the printer.

a$.$ How long does it take before a user can get their output?

b$.$ To speed things up you can buy another printer that is exactly the same as the one you

have. How long will it take for a user to get their files printed if you had two identical

printers?

c$.$ Another solution is to replace the existing printer with one that can print a file in an

average of one minute. How long does it take for a user to get their output with the

faster printer?