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    Question

    A train crosses a stationary pole in 6 sec and a

    70 m long platform in 13 secs. What is the length of the train?
    A 60m Correct Answer Incorrect Answer
    B 66m Correct Answer Incorrect Answer
    C 67m Correct Answer Incorrect Answer
    D 68m Correct Answer Incorrect Answer

    Solution

    Let the length of the train be x. `(x)/(6)` = `(70 + x )/(13)` ⇒ 13 x = 420 + 6 x [if gte msEquation 12]>x [if !msEquation]-->[endif]--> ⇒ 7 x = 420 [if gte msEquation 12]>∴ [if !msEquation]-->[endif]-->x = 60 m.

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