# Math

posted by .

Ben takes 6hrs to get a job done & Ted takes 11hrs to get the same job done. If they work together how long will it take them?

• Math -

What can be added is the rate of work.
This is how much work each finishes in an hour.

Ben's rate + Ted's rate
= 1/6+1/11
= 17/66
Together they do 17/66 of the work in an hour.

So time it takes to get the work done
= 1/(17/66)
= 66/17
= 3 15/17 hours

## Similar Questions

1. ### MATH

An application of a rational function is T = (AB)/(A+B), which gives the time, T, it takes for two workers to complete a particular task where A & B represent the time it would take for each individual worker to complete the identical …
2. ### Math

Barry can do a certain job in 3 hours, whereas it takes Sanchez 5 hours to do the same job. how long would it take them to do the job working together?
3. ### math

Tom,Ted,Tony,Terry worked together on a job.The job paid \$500.Each boy was paid according to the amount of work he contributed to the job.Ted and Tony earned \$280 together.Ted and Tom have \$260,and Ted and Terry got \$220.What percent …
4. ### math

Tom,Ted,Tony,Terry worked together on a job.The job paid \$500.Each boy was paid according to the amount of work he contributed to the job.Ted and Tony earned \$280 together.Ted and Tom have \$260,and Ted and Terry got \$220.What percent …
5. ### math

i don't get it ....Tom,Ted,Tony,Terry worked together on a job.The job paid \$500.Each boy was paid according to the amount of work he contributed to the job.Ted and Tony earned \$280 together.Ted and Tom have \$260,and Ted and Terry …
6. ### elementary and intermediate algebra

Barry can do a certain job in 9 hours, whereas it takes Samuel 12 hours to do the same job. How long would it take them to do the job working together?
7. ### math

Paul takes longer to paint the door than pete does.When they work together it takes them 2 hours.How long would each take to do the job alone?
8. ### algebra

it takes an HP laserjet 1300 printer 10 minute longer to complete a 600 page print job by itself than it takes an HP laserjet 2420 to complete the same job itself. Together the two printers can complete the job in 12 min. How long …
9. ### Math

A mechanic can do a job in 2hr. It takes his assistant 3hr to do the same job how long would it take them to complet the job if they worked together?
10. ### Math

an irrigation pump can do a job 3 times faster than another. If the y work together it takes 9 hours to complete the job. How long would it take the larger pump by itself

More Similar Questions