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JEE Main & Advanced Mathematics Probability Question Bank Definition of probability

  • question_answer
    A number is chosen at random from first ten natural numbers. The probability that number is odd and perfect square is

    A)                 \[\frac{2}{9}\]       

    B)                 \[\frac{2}{5}\]

    C)                 \[\frac{3}{7}\]       

    D)                 \[\frac{1}{5}\]

    Correct Answer: D

    Solution :

               Odd and prefect square \[(<10)\] are \[1,\,\,9.\]                 Hence required probability \[=\frac{2}{10}=\frac{1}{5}.\]


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