0
9 men taking 5 hours = 9 x 5 = 45 hour job
3 men doing a 45 hour job = 45 / 3 = 15 hours
Wiki User
∙ 6y ago
Add your answer:
Earn +20 pts
Two people are painting a fence one takes 3 hours to complete the job and one takes 6 hours to complete the same job how long would it take for both to complete the same job -?
It would still take six hours.
Worker A can complete a job in 20 hours and worker B can complete a job in 25 hours if both workers work together how long will it take them to complete the job?
The way to calculate this is to figure out what fraction each does in an hour (1/20 of the job, vs. 1/25 of the job). Add the fractions together to see how much they do together in an hour, then take the reciprocal to find out how many hours it takes them.
If a crew of 4 workers complete the job in 10 hours how long will it take 5 workers to complete the same job?
Eight hours.
A company has a machine that can complete a job in 6 hours A new machine can complete the job in 2 hours How long would it take the new machine to complete the job alone?
3 hours
If sally can paint a house in four hours and john can paint the same house in 6 hours how long will it take for both of them to paint the house together?
Sally does 1 job in 4 hours ===> 1/4th of the job per hour.John does 1 job in 6 hours ===> 1/6th of the job per hour.Working together, they do (1/4 + 1/6) = (3/12 + 2/12) = 5/12 job per hour.The job takes 12/5 = 2.4 hours = 2hours24minutes to complete.
Two people are painting a fence one takes 3 hours to complete the job and one takes 6 hours to complete the same job how long would it take for both to complete the same job -?
It would still take six hours.
If 2 people take 6 hours to do a job how long will it take 1 people to do the same job how do you work this out?
Assuming the same rate of speed, if it takes 2 people 6 hours to do a job, it will take 1 person 12 hours to do the same job. In each case, the number of work hours (2 x 6, 1 x 12) is the same.
How many hours roughly do roofers work?
as long as the job takes
Two people are shoveling a driveway one takes 3 hours to complete the job and the other takes 2 hours how long will it take them working together?
it will take them 2 hours and a half to work together on the driveways. but it depends on how far the driveways are from each other
Two people are painting a fence one takes 3 hours to complete the job and one takes 6 hours to complete the same job how long would it take for both to complete the same job?
My somewhat educated guess would be two hours. The person who could complete the job in 3 hours could complete 2/3 of the job in two hours. The person that complete the job in 6 hours could complete 1/3 of the job in two hours. 2/3 + 1/3 = 1.
Worker A can complete a job in 20 hours and worker B can complete a job in 25 hours if both workers work together how long will it take them to complete the job?
The way to calculate this is to figure out what fraction each does in an hour (1/20 of the job, vs. 1/25 of the job). Add the fractions together to see how much they do together in an hour, then take the reciprocal to find out how many hours it takes them.
If it takes 9 workers 5 hours to do a job how long will it take 3 men?
fifteen 9 x 5 = 45 45 / 3 = 15
How long does it take to pull a tansmission from a 94 ford escort lx3?
The job takes 3.5 to 4.0 hours to pull the transmission estimate to rebuild it - $1,700
If a crew of 4 workers complete the job in 10 hours how long will it take 5 workers to complete the same job?
Eight hours.
A company has a machine that can complete a job in 6 hours A new machine can complete the job in 2 hours How long would it take the new machine to complete the job alone?
3 hours
If 5 people take 6 hours to do a job how long will it take 2 people to do the same job how do you work this out?
It will take 2 people 900 minutes or 15 hours to do the job. First you have to find how long it takes 1 person to do a job, then once you have found that, you divide that number by 2 since there are 2 people. 6 hours x 60 minutes in an hour = 360 minutes for 5 people 360 minutes x 5 people = 1800 minutes per person 1800 minutes per person / 2 people working = 900 minutes for them to finish the job.
How long does it take gloss paint to dry?
between 24-48 hours depending on 1, the quality of the gloss, and 2, how thick you apply it. Have fun! Its a crap job!!!
