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    Question

    If the speed of Train A is six times to that of Train B

    and takes 15 hours less than Train A. Find the speed of Train B if the distance travelled by them was 720 km each.
    A 25 kmph Correct Answer Incorrect Answer
    B 40 kmph Correct Answer Incorrect Answer
    C 30 kmph Correct Answer Incorrect Answer
    D 36 kmph Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    According to the question, Let the speed of Train A= 4S kmph Let the speed of Train B = S kmph               Train A       Train B Speed        6                1 Time          1                6 Time difference = 5 = > 5 == 15 hours => 1 == 3 hours Time taken Train B = 6 × 3 = 18 hours Speed of Train B = 720/18 = 40 kmph

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