A car travel's 20km in first hour, 40km in second hour and 30 km in third hour.calculate the average speed of the train.
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Answer:
The total distance traveled equals 20km +40km = 60km. Total time equals 1 hr + 3 hr = 4hr. Average speed equals total distance traveled divided by the total time, 60km / 4hr = 15km per hour.
Explanation:
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average =20+40+30/3
average =90/3
average = 30km /hr
this is your correct answer
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