A Delhi metro train cover a distance of 42 km in 80 min .what is the average speed in meter per second
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Answer:
31.5 km/hr
Explanation:
42 km =42000 m
avg speed = distance covered/time taken
avg speed = 42000/80 = 525 m /min
speed in km/h = (525 *60)/1000 = 31.5 km/hr
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