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SSC Sample Paper Mock Test-4 SSC CGL Tear-II Paper-1

  • question_answer
      A man can reach a certain place in 30 h. If he reduces his speed by \[\frac{1}{15}\]th, he goes 10 km less that time. Find his speed per hour

    A)  6 km/h            

    B)  \[5\frac{1}{2}\]km/h

    C)   4 km/h                       

    D)  5 km/h

    Correct Answer: D

    Solution :

    Let the speed of man = x fan/h \[\therefore \]      \[30x-30\left( x-\frac{x}{15} \right)=10\] \[\Rightarrow \]   \[30\left( x-x+\frac{x}{15} \right)=10\] \[\Rightarrow \]               \[\frac{x}{15}=\frac{10}{30}\] \[\Rightarrow \]               \[x=\frac{150}{30}=5\,\,\,km/h\]


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