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7th Class Mathematics Algebraic Expressions Question Bank Algebra

  • question_answer
    The area of rectangle whose length and breadth are \[4{{x}^{2}}{{y}^{3}}\] and \[2x{{y}^{2}}\] respectively is

    A)  \[8{{x}^{2}}{{y}^{5}}\]             

    B)  \[8{{x}^{2}}{{y}^{2}}\]

    C)  \[8{{x}^{3}}{{y}^{5}}\] 

    D)  \[6{{x}^{3}}{{y}^{5}}\]

    Correct Answer: C

    Solution :

    Area of rectangle = length\[\times \]breadth Area\[=4{{x}^{2}}{{y}^{3}}\times 2x{{y}^{2}}\] \[=8{{x}^{3}}{{y}^{5}}\]          


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