SOLUTION: a man drives a car a distance of 200 km at an average speed of 44 kmhr^-1. What must be his average speed for the next 220 km of he is to cover the total distance in 9 hours.
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-> SOLUTION: a man drives a car a distance of 200 km at an average speed of 44 kmhr^-1. What must be his average speed for the next 220 km of he is to cover the total distance in 9 hours.
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Question 1072829: a man drives a car a distance of 200 km at an average speed of 44 kmhr^-1. What must be his average speed for the next 220 km of he is to cover the total distance in 9 hours. Answer by rothauserc(4718) (Show Source):
You can put this solution on YOUR website! Use rate * time = distance
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time = 200 / 44 = 4.5 hours, therefore
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9 - 4.5 = 4.5 hours to cover 220 km
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rate = 220 / 4.5 = 48.9 km / hour
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