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SSC Quantitative Aptitude Mensuration Question Bank Mensuration-I (II)

  • question_answer
    The area of a square is three-fifth the area of a rectangle. The length of the rectangle is 25 cm and its breadth is 10 cm less than its length. What is the perimeter of the square?

    A) 60 cm

    B) 80 cm

    C) 44 cm

    D) None of these

    Correct Answer: A

    Solution :

    [a] \[\because \]Length of rectangle \[=25\,cm\] \[\therefore \]Breadth of rectangle \[=25-10=15\,cm\] Area of rectangle \[=25\times 15=375\,c{{m}^{2}}\] \[\therefore \]Area of square\[=\frac{3}{5}\times 375=225\,c{{m}^{2}}\] \[\Rightarrow \]Side of square \[=\sqrt{225}=15\,cm\] Hence, perimeter of square \[=4\times side\,=4\times 15=60\,cm\]


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