New Click here to Enroll for SIDBI MSME Expert Classes by Experts

    Register

    Question

    A train crosses a platform which is 120 m long

    in 14 seconds and the same train crosses a static pole in 8 seconds. Find the length and speed of the train.
    A 162m,12m/sec Correct Answer Incorrect Answer
    B 160m,20m/sec Correct Answer Incorrect Answer
    C 112m,26m/sec Correct Answer Incorrect Answer
    D 119m,21m/sec Correct Answer Incorrect Answer

    Solution

    Sol. Let the length of the train be x [if gte msEquation 12]>x [if !msEquation]-->[endif]-->metres. ⇒ `x/8 = (120 + x)/14 rArr 14x = 960 + 8x` ⇒`6x = 960 :. x = 160m` [if gte msEquation 12]>∴ [if !msEquation]-->[endif]-->`:.` Speed of the train = `(Distance)/(Time) = 160/8` = 20 m/sec.

    Practice Next

    Relevant for Exams: