Question

    A car travels a distance of 810 meters in 36 seconds. If

    the speed of the car is reduced by 4.5 meters per second, how much time (in seconds) will it take to cover the same distance?
    A 40 secs Correct Answer Incorrect Answer
    B 25 secs Correct Answer Incorrect Answer
    C 35 secs Correct Answer Incorrect Answer
    D 45 secs Correct Answer Incorrect Answer

    Solution

    ATQ,

    Speed of car = (810/36) = 22.5 m/s New speed of car = 22.5 - 4.5 = 18 m/s Required time = (810/18) = 45 seconds

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