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

    Question

    A train crosses a pilar in 20 seconds and a platform of

    length 300 metres in 25 seconds,then what will the 120% of the length of the train.
    A 1500 Correct Answer Incorrect Answer
    B 1440 Correct Answer Incorrect Answer
    C 1445 Correct Answer Incorrect Answer
    D 1200 Correct Answer Incorrect Answer
    E none of these Correct Answer Incorrect Answer

    Solution

    Let the length of the train is 'x'metres. ATQ, (x/20) = {(x + 300)/25} Multiplying throughout by '5', we get Or, (x/4) = {(x + 300)/5} Or, 5x = 4x + 1200 So, x = 1200 So, required value = 1200 X 1.2 = 1440

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