ЁЯУв Too many exams? DonтАЩt know which one suits you best? Book Your Free Expert ЁЯСЙ call Now!

    Question

    Two trains of equal lengths take 15 seconds and 30

    seconds respectively to cross a telegraph post. If the length of each train be 180 metres, in what time will they cross each other travelling in opposite direction?
    A 24 sec Correct Answer Incorrect Answer
    B 20 sec Correct Answer Incorrect Answer
    C 36 sec Correct Answer Incorrect Answer
    D 16 sec Correct Answer Incorrect Answer

    Solution

    Speed of the first train = [180/15] m/sec = 12 m/sec Speed of the second train = [180/30] m/sec = 6 m/sec Speed = (12 + 6) m/sec = 18 m/sec Required time = (180 + 180)/18 sec = 20 sec

    Practice Next
    More Trains Questions

    Relevant for Exams:

    ask-question