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In the year-end clearance sale, a music system is discounted by \(d\%,\) and then it is discounted by another \(3d\%\)

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by M7MBA » Sun Aug 15, 2021 2:42 pm
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In the year-end clearance sale, a music system is discounted by \(d\%,\) and then it is discounted by another \(3d\%\) on the previous discount amount. The original price of the music system is what percent of the final value if the initial discount percent is \(30?\)

A. \(23\%\)
B. \(40\%\)
C. \(143\%\)
D. \(233\%\)
E. \(1429\%\)

Answer: D

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