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    Question

    A car covers its journey at the speed of 50 km/hr in 4

    hours. If the same distance is to be covered in 2 hours, by how much the speed of car will have to increase?
    A 24 km/hr Correct Answer Incorrect Answer
    B 46 km/hr Correct Answer Incorrect Answer
    C 30 km/hr Correct Answer Incorrect Answer
    D 50 km/hr Correct Answer Incorrect Answer
    E 64 km/hr Correct Answer Incorrect Answer

    Solution

    Initial speed = 50 km/hr Total distance = 50 × 4 = 200 km New speed = 200/2 = 100 km/hr Increase in speed = 100 - 50 = 50 km/hr

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