Question

    A person crosses a 1800 m long street in 5 min. What is

    his speed (in km/h)?
    A 22.4km/h Correct Answer Incorrect Answer
    B 11.2km/h Correct Answer Incorrect Answer
    C 21.6km/h Correct Answer Incorrect Answer
    D 18.6km/h Correct Answer Incorrect Answer

    Solution

    Distance = 1800m = 1.8km Time = 5min =1/12 hour Speed = D /T = 1.8 / (1/12) = 1.8×12 = 21.6 km/ h

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