Multiple Choice Questions on Two cars A and B start simultaneously from a certain place at the speed of 30 km h and 45 km h respe........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

Two cars A and B start simultaneously from a certain place at the speed of 30 km h and 45 km h respe...........

Quant (SSC) Time & distance
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    Two cars A and B start simultaneously from a certain place at the speed of 30 km/h and 45 km/h, respectively. The car B reaches the destination 2 h earlier than A. what is the distance between the starting point and destination?

    90 km

    Incorrect Answer

    180 km

    Correct Answer

    270 km

    Incorrect Answer

    360 km

    Incorrect Answer
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    Explanation:

    Let the distance be x km. then,
    Time taken by the slower car – Time taken by the faster car = 2 hours
    x/30 - x/45 = 2
    ⇒ 3x - 2x/90 = 2
    ⇒  x = 180 km.

    By: Amit Kumar
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