SOLUTION: an aeroplane covers a distance of 120 km in 1 hour 20 minutes find the average speed of aeroplane?
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Question 712336: an aeroplane covers a distance of 120 km in 1 hour 20 minutes find the average speed of aeroplane?
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
1 hr 20 min = 4/3 hrs
d = rt
120 = r*(4/3)
120/(4/3) = r
r = 120/(4/3)
r = 90
Average Speed: 90 km/hr
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