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7th Class Mental Ability Data Handling Question Bank Data Handling

  • question_answer
    A bag contains 6 black and 8 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?

    A) \[\frac{3}{4}\]              

    B)   \[\frac{4}{7}\]        

    C) \[\frac{1}{8}\]                          

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

    E) None of these

    Correct Answer: B

    Solution :

    Explanation Let the total number of balls \[= \left( 6 + 8 \right) = 14.\] \[\operatorname{Number} of white balls = 8.\] P(drawing a white ball) \[=\,\,\frac{8}{14}=\frac{4}{7}\]. 


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