New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    Train A is 180 meters long, while another Train B is 240

    meter long. Train A has a speed of 30 kmph and Train B’s speed is 40 kmph, if the trains move in opposite directions, then in what time will Train A pass Train B completely?
    A 21 sec Correct Answer Incorrect Answer
    B 21.6 sec Correct Answer Incorrect Answer
    C 26.1 sec Correct Answer Incorrect Answer
    D 26 sec Correct Answer Incorrect Answer
    E 16 sec Correct Answer Incorrect Answer

    Solution

    Total distance = 180 + 240 = 420 meter Relative speed = (30 + 40)×5/18 = 350/18 m/s Required time = (420×18)/ (70×5) = 21.6 sec

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