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8th Class Mathematics Algebraic Expressions Question Bank Algebra

  • question_answer
    A man can row at 8 kmph in still water. If the river is running at 2 kmph, it takes him 48 minutes to row to a place and back. How far is the place?

    A) 1km               

    B) 2km

    C) 3km               

    D) 4km

    Correct Answer: C

    Solution :

    Speed of the man in still water = 8kmph Speed of the river = 2 kmph Downstream \[{{t}^{2}}-11\]kmph Upstream\[=8-2=6\]kmph \[3{{t}^{2}}+11\]  \[{{x}^{4}}+2{{x}^{2}}-3x+7\]  \[{{x}^{3}}+{{x}^{2}}+x-1?\]   


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