GMAT 考满分题库

Magoosh - 数学PS - 392
If three primes are randomly selected from the prime numbers less than 30 and no prime can be chosen more than once, what is the probability that the sum of the three prime numbers selected will be even?
  • A10%
  • B27%
  • C30%
  • D36.5%
  • E42%
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正确答案: C

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