GMAT 考满分题库

Magoosh - 数学PS - 284
A box contains 10 balls numbered from 1 to 10 inclusive. If Ann removes a ball at random and replaces it, and then Jane removes a ball at random, what is the probability that both women removed the same ball?
  • A$$\frac{1}{100}$$
  • B$$\frac{1}{90}$$
  • C$$\frac{1}{45}$$
  • D$$\frac{1}{10}$$
  • E$$\frac{41}{45}$$
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正确答案: D

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