Bell, Inc. buys 1,000 computer game CDs from a distributor who is discontinuing those games. The purchase price for the lot is $8,000. Bell will group the CDs into three price categories for resale, as indicated below.

Group		No. of CDs		Price per CD
1		100		$5
2		800		10
3		100		15

Determine the cost per CD for each group, using the relative sales value method. (Do not round ratios for computational purposes. Round final answers to 2 decimal places, e.g. 5.85.)