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10th Class Mathematics Probability Question Bank Probability

  • question_answer
    Two dice are thrown at a time. The probability that the difference of the numbers shown on the dice is 1 is ___.

    A)  \[\frac{5}{18}\]                     

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

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

    D)  \[\frac{1}{18}\]         

    Correct Answer: A

    Solution :

    Total number of outcomes = 36 Difference of numbers is 1, when pairs are (6, 5).(5, 4), (4, 3), (3, 2), (2, 1), (5, 6), (4, 5). (3, 4), (2, 3), (1, 2) \[\therefore \]    Total favourable outcomes =10 \[\therefore \]   Required probability \[=\frac{10}{36}=\frac{5}{18}\]


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