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    Question

    Two trucks ‘M’ and ‘N’ started simultaneously from

    cities ‘X’ and ‘Y’ respectively towards each other. When they met after 9 hours, truck ‘N’ had travelled 144 km more than truck ‘M’. How much distance did truck ‘M’ travel in 6 hours if the total distance between X and Y is 624 km?
    A 190 km Correct Answer Incorrect Answer
    B 160 km Correct Answer Incorrect Answer
    C 140 km Correct Answer Incorrect Answer
    D 120 km Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Let distance travelled by truck ‘M’ at the time of meet = x km

    So, distance travelled by truck ‘N’ at the time of meet = x + 144 km

    According to question;

    x + x + 144 = 624

    Or, 2x = 480

    Or, x = 240

    Distance travelled by truck ‘M’ in 9 hours = 240 km

    Speed of truck ‘M’ = 240 / 9 = 26.67 km/h

    Distance travelled by truck ‘M’ in 6 hours = 26.67 × 6 = 160 km

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