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      Question

      Karan and Varun started running

      in a straight line at 5 m/s and 7.5 m/s respectively. If Karan started 90 meters ahead of Varun, how much time will Varun take to catch Karan?
      A 46 seconds Correct Answer Incorrect Answer
      B 33 seconds Correct Answer Incorrect Answer
      C 26 seconds Correct Answer Incorrect Answer
      D 36 seconds Correct Answer Incorrect Answer
      E None of These Correct Answer Incorrect Answer

      Solution

      ATQ,

      Relative speed of Varun with respect to Karan = 7.5 − 5 = 2.5 m/s Required time = 90/2.5 = 36 seconds

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