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Time, Distance and Speed

A person walks at a speed of 5 km/h for 30 minutes and then runs at a speed of 10 km/h for 1 hour. What is the total distance covered?

Answer: B. 12.5 km
Distance walked = 5 km/h * 0.5 hours = 2.5 km; Distance run = 10 km/h * 1 hour = 10 km; Total distance = 2.5 km + 10 km = 12.5 km.
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