GMAT 考满分题库

- 数学PS -
A store bought 5 dozen lamps at $30 per dozen and sold them all at $15 per lamp. The profit on each lamp was what percent of its selling price?
  • A20%
  • B50%
  • C83$$\frac{1}{3}$$%
  • D100%
  • E500%
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正确答案: C

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