Cow Chips,Inc

Cow Chips,Inc.,a large fertilizer distributor based in California,is planning to use a lockbox system to speed up collections from its customers located on the East Coast.A Philadelphia-area bank will provide this service for an annual fee of $25,000 plus 12 cents per transaction.The estimated reduction in collection and processing time is one day.The average customer payment in this region is $8,200.Treasury bills are currently yielding 5 percent per year.Assume a year has 365 days.Approximately how many customers each day,on average,are needed to make the system profitable for Cow Chips,Inc.?

A) 56
B) 68
C) 74
D) 83
E) 89