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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 speed of stream is:

    A) \[\text{3 km}/\text{h}\]

    B) \[\text{4 km}/\text{h}\]

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

    D) \[\text{6 km}/\text{h}\]

    Correct Answer: B

    Solution :

    On putting the value of x in eq. (2), we get
    \[10+y=14\]
                \[\Rightarrow \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,y=14-10=4\]
    \[\therefore \]   Speed of the stream is 4 km/h.
    So, option [b] is correct.


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