9th Class Mathematics Probability Question Bank Probability

  • question_answer The speed of vehicles 200 travelling along a section of highway were recorded and displayed frequently alongside. What is the possibility that the vehicles were travelling at a speed between 60 kmph and 100 kmph?

    A)  \[\frac{2}{7}\]                         

    B)  \[\frac{3}{7}\]

    C)  \[\frac{11}{14}\]          

    D)  \[\frac{1}{7}\]

    Correct Answer: C

    Solution :

    (c): No. of vehicles running between 60 and \[100\text{ }kmph=200=n\left( E \right)\] Total vehicles \[=350=n\left( S \right)\] \[n(P)\frac{275}{350}=\frac{11}{14}\]               

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