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10th Class Mathematics Pair of Linear Equations in Two Variables Question Bank Case Based (MCQs) - Pair of Linear Equations in Two Variables

  • question_answer
    The average speed of stream and boat in still water is:

    A) \[\text{7 km}/\text{h}\]

    B) \[\text{10 km}/\text{h}\]  

    C) \[\text{12 km}/\text{h}\]

    D) \[\text{5 km}/\text{h}\]

    Correct Answer: A

    Solution :

    Average speed of stream and boat in still water
    \[=\frac{y+x}{2}=\frac{4+10}{2}=\frac{14}{2}=7km/h\]
    So, option [a] is correct.


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