Question
A person crosses a 600-metre-long street in 10 minutes.
The speed of the person, in km/h, is:Solution
Length of the street = 600 m = 0.6 km Time = 10 min = (10/60) = 1/6 hours Required speed = Distance/Time = (0.6/1/6) km/h  = (0.6 x 6) km/h = 3.6 km/h The speed of the person is 3.6 km/h.
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