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SSC Sample Paper SSC (Group-C) Sample Test Paper-6

  • question_answer
    A, B. C walk 1 km in 5 minutes, 8 minutes and 10 minutes respectively. C starts walking from a point, at a certain time. B starts from the same point 1 minutes later and A starts from the same point 2 minutes later than C. Then A meets B and C at times.

    A)  \[\frac{5}{3}\]min / 2 min

    B)       1 min / 2 min

    C)  2 min / 3 min

    D)       \[\frac{4}{3}\] min / 3 min

    Correct Answer: A

    Solution :

     As speed \[=\frac{1000}{5}=200\,m\]/minute B's speed \[=\frac{1000}{8}=125\,m\]/minute C's speed \[=\frac{1000}{10}=100\,m\]/minute Distance covered by C in 2 minutes=200 metre Distance covered by B In 1 minute=125 metre Relative speed of A with respect to C=d00 metre \[\therefore \]   Time \[=\frac{200}{100}=2\] minutes Relative speed of A with respect of B=75 metre \[\therefore \]    Time \[=\frac{125}{75}=\frac{5}{3}\] minutes


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