GMAT 考满分题库

Magoosh - 数学PS - 41
A box contains 4 red chips and 2 blue chips. If two chips are selected at random without replacement, what is the probability that the chips are different colors?
  • A$$\frac{1}{2}$$
  • B$$\frac{8}{15}$$
  • C$$\frac{7}{12}$$
  • D$$\frac{2}{3}$$
  • E$$\frac{7}{10}$$
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正确答案: B

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