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SSC Sample Paper Mock Test-2 SSC CGL Tear-II Paper-1

  • question_answer
    The length of a rectangle is increased by 60%. By what per cent would the breadth be decreased to maintain the same area?

    A)  \[37\frac{1}{2}%\]

    B)  \[37%\]

    C)  \[36\frac{1}{2}%\]                   

    D)  \[38\frac{1}{3}%\]

    Correct Answer: A

    Solution :

    Let the length be 100 m and breadth be 100 m, then New length = 160 m. New breadth = x, then\[160\times x=100\times 100\] \[\Rightarrow \]   \[x=\frac{100\times 100}{160}\] \[\Rightarrow \]   \[x=\frac{125}{2}\] Decrease in breadth\[=\left( 100-\frac{125}{2} \right)%=37\frac{1}{2}%\]                        


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