10th Class Mathematics Probability Question Bank MCQs - Probability

  • question_answer
    The probability of getting a bad egg in a lot of 400 is\[0.0\text{35}\]. The number of bad eggs in the lot is: (NCERT EXEMPIAR)

    A) 7

    B) 14

    C) 21

    D) 28

    Correct Answer: B

    Solution :

    [b] Here, total number of eggs = 400
    Probability of getting a bed egg \[=0.035\]
    \[\Rightarrow \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\frac{\text{Number of eggs}}{\text{Total number of eggs}}=0.035\]
     \[\Rightarrow \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\frac{\text{Number of bed}}{400}=0.035\]
    \[\therefore \]  Number of bed eggs \[=0.035\times 400=14\]


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