Question

    On a circular path of 693 m, Sujata and Anjali start

    walking from the same point but in opposite directions at speeds of 2.85 km/h and 1.5 m/sec, respectively. When they will meet for the first time?
    A After 6.75 minutes. Correct Answer Incorrect Answer
    B After 6.05 minutes Correct Answer Incorrect Answer
    C After 5.04 minutes Correct Answer Incorrect Answer
    D After 4.56 minutes Correct Answer Incorrect Answer

    Solution

    2.85 km/hr = 2.85 x (5/18) =0.79 m/s Relative speed = 0.79 + 1.5 = 2.29 m/s Time = Distance/relative speed Time 693/2.29 Time = 302.62 seconds Time = 5.04 minutes They will meet for the first time after 5.04 minutes.

    Practice Next

    Relevant for Exams: