The following is taken from the records of Apple Corporation for the year ended December 31,2010: -

Net credit sales

640,000

Average raw materials inventory

6,000

Average finished goods inventory

7,000

Average accounts receivable

80,000

Average accounts payable

15,000

Net credit purchases

135,000

Raw materials used

36,000

Gross profit rate

30%

What is the average number of days in the companys cash conversion cycle? (use 360-day year)