GMAT 考满分题库

- 数学PS -
The size of the rectangular ground is 12 feet * 9 feet. If the ground is covered with square tiles whose length is 9 inches. How many tiles are needed? (1 foot = 12 inch)
  • A168
  • B174
  • C180
  • D186
  • E192
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正确答案: E

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