A music store has 90 different CD's. If an average price is $12 per CD and 20 of the most expensive ones are $20 each,

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Vincen: Legendary Member; Posts: 2898; Joined: Thu Sep 07, 2017 2:49 pmFollowed by: 5 members; Thanked: 6 times

by Vincen » Tue Aug 18, 2020 7:28 am

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A music store has 90 different CD's. If an average price is $12 per CD and 20 of the most expensive ones are $20 each, what is the average price of the remaining CD's?

A. 8.33
B. 8.75
C. 9.23
D. 9.71
E. 10.07

Answer: D

Source: GMAT Club Tests

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Source: Beat The GMAT — Problem Solving | Tue Aug 18, 2020 7:28 am

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