Anne Teak, the financial manager of a furniture manufacturer, is considering operating a lock-box system. She forecasts that 400 payments a day will be made to lock boxes with an average payment size of $3,000. The bank's charge for operating the lock boxes is $0.40 a check. The interest rate is 0.011% per day.

a.If the lock box makes the cash available 2 days earlier, calculate the net daily advantage of the system.(Do not round intermediate calculations.)

b.Is it worthwhile to adopt the system?

• Yes
• No

c.What minimum reduction in the time to collect and process each check is needed to justify use of the lock-box system?(Do not round intermediate calculations. Round your answer to 2 decimal places.)