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    Question

    Rajesh drove at the speed 100 km/hr from his home to a

    resort. While returning he got struck in traffic and took 6 more hrs; he could drive only at the speed of 40 km/hr. How many kilometer did he drive each way?
    A 450 km Correct Answer Incorrect Answer
    B 300 km Correct Answer Incorrect Answer
    C 320 km Correct Answer Incorrect Answer
    D 400 km Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Let the distance be x km. Then, x/40 × x/100 = 6 5x – 2x = 6 × 200 3x = 1200 x = 400 km

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