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5th Class Mathematics Mensuration Question Bank Mensuration

  • question_answer
    The perimeter of rectangle \[PQRS\] is\[28\,\,cm\]. What is the ratio of its length to its breadth?

    A) \[3:4\]                           

    B)           \[4:3\]               

    C)           \[4:5\]                           

    D)           \[3:7\]

    Correct Answer: B

    Solution :

    Perimeter of rectangle\[=28\,\,cm\]                \[=2(8+b)cm\] \[\therefore \]      \[b=\left( \frac{28}{2}-8 \right)cm\]                \[=(14-8)cm=6\,\,cm\] Hence, the required ratio is\[8:6=4:3\]


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