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    Question

    How many km per hour does a man walk who passes through

    a street 1400 m long in 12 minutes?
    A 2 km/hr Correct Answer Incorrect Answer
    B 4 km/hr Correct Answer Incorrect Answer
    C 7 km/hr Correct Answer Incorrect Answer
    D 5 km/hr Correct Answer Incorrect Answer
    E none of these Correct Answer Incorrect Answer

    Solution

    Distance = 1400 m, Time = 12 minutes = 12 × 60 = 720 seconds, Speed = ? Speed = (Distance )/(Time ) = (1400 )/720 × (18 )/(5 ) = 7 km/hr

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