JEE Main & Advanced Mathematics Probability Question Bank Definition of probability

  • question_answer
    Three identical dice are rolled. The probability that same number will appear on each of them will be    [SCRA 1991;             MP PET 1989; IIT 1984; RPET 2000, 02; DCE 2001]

    A)                 \[\frac{1}{6}\]       

    B)                 \[\frac{1}{36}\]

    C)                 \[\frac{1}{18}\]    

    D)                 \[\frac{3}{28}\]

    Correct Answer: B

    Solution :

               Same number can appear in 6 ways.                 Hence required probability \[=\frac{6}{216}=\frac{1}{36}.\]


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