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    Question

    There are two trains A and B. A start from point

    X at 3 AM towards point Y. Another train B starts at 5 AM from point X. If they meet at 7 AM and speed of A is 30 km/hr, while that of B is 40 km/hr. Find distance between X and Y.
    A 200 km Correct Answer Incorrect Answer
    B 148 km Correct Answer Incorrect Answer
    C 120 km Correct Answer Incorrect Answer
    D 100 km Correct Answer Incorrect Answer
    E 240 km Correct Answer Incorrect Answer

    Solution

    Speed of train A = 30 kmph
    Speed of train B = 40 kmph
    Time taken by train A to meet train B at 7 AM = 4 hrs
    Time taken by train B to meet train A at 7 AM = 2 hrs
    Distance travelled by train A = 4 × 30 = 120 km
    Distance travelled by train B = 2 × 40 = 80 km
    Therefore, total distance between X and Y = 120 + 80 = 200 km

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