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Gaokao Math Practice Question

5. (5 分) 小敏打开计算机时,忘记了开机密码的前两位,只记得第一位是 M, I, $\mathrm{N}$ 中的一个字母, 第二位是 $1,2,3,4,5$ 中的一个数字, 则小敏输人一 次密码能够成功开机的概率是()

  1. A.$\frac{8}{15}$
  2. B.$\frac{1}{8}$
  3. C.$\frac{1}{15}$
  4. D.$\frac{1}{30}$

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