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BCECE Engineering BCECE Engineering Solved Paper-2002

  • question_answer
    Two dice are thrown simultaneously. The probability that the sum of the points on two dice will be 7, is :                

    A)  5/36                     

    B)         1/6                       

    C)  7/36                     

    D)         2/9

    Correct Answer: B

    Solution :

    Total sample space, \[n(S)=6\times 6=36.\] Let \[E=\] Events of getting sum of two points is 7 \[=\{(1,6),(6,1),(2,5),(5,2),(3,4),(4,3)\}\] \[\therefore \]  \[n(E)=6\] \[\therefore \]Required probability \[=\frac{n(E)}{n(S)}\]                                                 \[=\frac{6}{36}=\frac{1}{6}\]


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