Question

    A train 350 metre long takes 36 sec to cross a man

    running at a speed of 5 km/hr in the direction opposite to that of train. What is the speed of the train?
    A 23 km/hr Correct Answer Incorrect Answer
    B 18 km/hr Correct Answer Incorrect Answer
    C 30 km/hr Correct Answer Incorrect Answer
    D 20 km/hr Correct Answer Incorrect Answer
    E 17 km/hr Correct Answer Incorrect Answer

    Solution

    Let the speed of the train be x Relative speed = (x + 5) km/hr ⇒ (x + 5) = (350 × 18)/(36 × 5) ⇒ (x + 5) = (6300)/(180) ⇒ x + 5 = 35 ⇒ x = 35 – 5 = 30 km/hr

    Practice Next

    Relevant for Exams: