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SSC Sample Paper SSC CGL - Sample Paper-3

  • question_answer
    The sides of a rectangular plot are in the ratio 5: 4 and its area is equal to 500 sq m. The perimeter of the plot is

    A)  80 m   

    B)  100 m

    C)  90 m                           

    D)  95 m

    Correct Answer: A

    Solution :

    Volume of rectangle \[=L\times B\] \[\therefore \]      \[5x\times 4x=500\,sq\,\,m\] Or         \[2{{x}^{2}}=500\,sq\,\,m\] \[\therefore \]      \[{{x}^{2}}=\frac{500}{20}=25\] \[\therefore \]      \[x=5\] \[\therefore \]      \[L=5\times 5=25\,m\]             \[B=5\times 4=20\,m\] \[\therefore \] Perimeter \[=(L+B)m\]             \[=2\,(25+20)\]             \[=2\times 45=90\,m\]


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