SOLUTION: A snowplow company has two trucks. One truck has a large plow in the front and can clear a parking lot in 30 minutes. The other truck has a small plow and takes 50 minutes to clear
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Question 985522: A snowplow company has two trucks. One truck has a large plow in the front and can clear a parking lot in 30 minutes. The other truck has a small plow and takes 50 minutes to clear the same amount of space. If both trucks are plowing one lot, how long should it take? Answer by vleith(2983) (Show Source):
You can put this solution on YOUR website! The first truck can plow (1/30) of the lot per minute.
The second truck can plow (1/50) of the lot per minute
Together they can plow of the lot per minute of the lot per minute
How long to to the whole lot?
minutes
So it will take them 18 minutes and 45 seconds to plow it together
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