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

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
RELATED QUESTIONS
Thomas' snowplow can clear 1000 feet of roadway of a 9 inch snowfall in 5 minutes.... (answered by richwmiller)

Julia saw 5 times as many cars as trucks in a parking lot.If she saw 30 cars and trucks... (answered by Math_Boss)

In a parking lot at a truck stop there were six more cars then 18 wheel trucks. There... (answered by ewatrrr)

In the parking lot of a truck stop there were six more cars than 18 wheel trucks. There... (answered by funmath)

At 5 A.M. a snowplow, traveling at a constant speed, begins to clear a highway leading... (answered by solver91311)

At 6 A.M. a snowplow, traveling at a constant speed, begins to clear a highway leading... (answered by jorel1380)

At 6 A.M. a snowplow, traveling at a constant speed, begins to clear a highway leading... (answered by richwmiller)

At 6 A.M. a snowplow, traveling at a constant speed, begins to clear a highway leading... (answered by macston)

A full parking lot currently has 22 cars and 18 trucks. Eight of the cars and six of the... (answered by solver91311)