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10th Class Mathematics Probability Question Bank Case Based (MCQs) - Probability

  • question_answer
    If the sum of x and y is \[\frac{3}{10},\] then the number of rainy days in June is:                                            

    A) 1

    B) 2

    C) 3

    D) 4

    Correct Answer: D

    Solution :

    We have, \[x+y=\frac{3}{10}\Rightarrow y=\frac{3}{10}-\frac{1}{6}=\frac{2}{15}\]
    So, number of rainy days \[=\frac{2}{15}\times 30=4\]
    So, option [d] is correct


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