Blue Spruce buys $1,000$ computer game CDs from a distributor that is discontinuing those games. The purchase price for the lot is

$$7,400.$ Blue Spruce will group the CDs into three price categories for resale, as follows:

Determine the cost per CD for each group, using the relative sales value method. $($Round intermediate calculations and final answers to $2$

decimal places, e$.$g$.52\mathrm{.}75.)$

Cost per CD

Group $1$$

Group $2$$

Group $3$$

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