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SSC Sample Paper SSC CGL - Sample Paper-16

  • question_answer
    A takes \[7\frac{1}{2}h\] and B 6 h to walk round a circular track. If they start together in opposite directions, they will meet after

    A) \[2\frac{2}{3}h\]                       

    B) \[3\frac{1}{3}h\]

    C) \[2\frac{1}{3}h\]                       

    D) None of these              

    Correct Answer: B

    Solution :

    Let length of circular track = x km Let A, B meet after t h. Then, (distance covered by A in t h) + (distance covered by b in t h) = x \[\therefore \]      \[\frac{x}{\frac{15}{2}}t+\frac{x}{6}t=x\] \[\therefore \]      \[t\left( \frac{2}{15}+\frac{1}{6} \right)=1\] \[\therefore \]      \[t=\frac{30}{9}=\frac{10}{3}=3\frac{1}{3}\]


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