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    Question

    A man is travelling at a speed of 100 km/h such that he

    will take 60 minutes to reach his destination. But after completing half the journey, the man took a break of 6 minutes and then continued his journey. Find the speed at which the man must cover rest of the journey to reach his destination in original time.
    A 125 km/h Correct Answer Incorrect Answer
    B 120 km/h Correct Answer Incorrect Answer
    C 105 km/h Correct Answer Incorrect Answer
    D 135 km/h Correct Answer Incorrect Answer

    Solution

    Total distance to be covered = 100 × (60/60) = 100 km Time taken to cover half the distance at original speed = {(100 ÷ 2) ÷ 100} × 60 = 30 minutes Time remaining = 60 – 30 – 6 = 24 minutes Required speed = 50 ÷ 24 × 60 = 125 km/h

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