Railways R.R.C. (Gorakhpur) Solved Paper Held on 1st Shift 23-11-2014

  • question_answer
    If three coins are thrown, what is the probability of getting all the heads?

    A) \[{1}/{2}\;\]                              

    B) \[{1}/{6}\;\]

    C) \[{1}/{8}\;\]                              

    D) \[{1}/{9}\;\]

    Correct Answer: C

    Solution :

    Required probability \[=\frac{1}{2}\times \frac{1}{2}\times \frac{1}{2}=\frac{1}{8}\]


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