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Time, Distance and Speed

A person walks at a speed of 4 km/h for 30 minutes and then runs at 8 km/h for 1 hour. What is the total distance covered?

Answer: C. 10 km
Distance walked = 4 km/h × 0.5 hours = 2 km; Distance run = 8 km/h × 1 hour = 8 km; Total distance = 2 km + 8 km = 10 km.
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