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10 hrs

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14y ago
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Frances Osborne

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7mo ago
It will be quicker not slower

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Q: If 2 men take 4 hours to do a job how long will 5 men take?
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Four men can do a job in 48 days How many days will it take 3 men to finish the same job?

Taking into consideration that each man works an 8 hour work day: (4 x 8) x 48 = 1536 man hours to complete the job for 4 men *** (Men x Man hours per day) x Days Worked = Total Job Man Hours *** 1536 / (3 x 8) = 64 days for 3 men to complete the same job *** Total Job Man Hours / (Men x Man Hours per day) = Days until Job Completion***


10 men can complete a job in 14 dayshow long will it take 4 men to finish the same job if they work at the same rate?

Ans- It will take 4 men to complete the work in 35 days.


If a job takes 12 men 4 hours to complete how long should it take 15 men to complete the job?

answer:for a problem like this you have to compute how many person-hours it will take to complete the job and then it's easy to figure out the total time.so,let j = total job person-hours = 12 people * 4 hours = 48 person-hoursso, we know we need 48 person-hours to complete the entire job. so, given that we have now 15 people to complete the job,let t = total time to complete job with 15 people = 48 person-hours / 15 people = 3.2 hours, or 3 hours 12 minutestherefore, for a job that takes 12 people 4 hours, assuming there is no particular constraint on the amount done per person, the job can be done in 3 hours 12 minutes with 15 people. (for instance, although one woman can have a baby in nine months, 9 women can't have a baby in one month)previous answer:I think it'll be 1hourmy own conclusion


If it takes 3 men 6 hours to dig 12 holes how long does it take 2 men to dig 9 holes?

It takes 3 x 6 = 18 man hours to dig 12 holes. Therefore it takes 18/12 = 1.5 man hours to dig 1 hole. To dig 9 holes takes 9 x 1.5 man hours = 13.5 man hours If 2 men are working then they take 13.5/2 = 6.75 hours or 6 hours 45 minutes.


If it takes 4 men 4 hours to dig 4 holes how long does it take to dig half a hole?

two man-hours. limited only by the space available for diggers per hole.

Related questions

If it takes 9 men 5 hours to do a job how long will it take 3?

9 men taking 5 hours = 9 x 5 = 45 hour job 3 men doing a 45 hour job = 45 / 3 = 15 hours


8 men take 6 hours to do a job. How many hours will 12 men take Working?

4 hours


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


Thirty men take 20 days to complete a job working 9 hours a dayHow many hour a day should 40 men work to complete the job?

9 1/2 hours


7 men build a wall in 3 hours how long will it take 2 men to build same wall?

10 Hours


If it took eight men ten hours to build a wall how long would it take four men to build it?

It would take 20 hours because you have half the men, therefore it would take double the time.


Four men can do a job in 48 days How many days will it take 3 men to finish the same job?

Taking into consideration that each man works an 8 hour work day: (4 x 8) x 48 = 1536 man hours to complete the job for 4 men *** (Men x Man hours per day) x Days Worked = Total Job Man Hours *** 1536 / (3 x 8) = 64 days for 3 men to complete the same job *** Total Job Man Hours / (Men x Man Hours per day) = Days until Job Completion***


10 men can complete a job in 14 dayshow long will it take 4 men to finish the same job if they work at the same rate?

Ans- It will take 4 men to complete the work in 35 days.


If it took 8 men to build a wall how long would it take 4 men to build it?

20 hours


If 7 men can do a certain job in 12 days then how long would it take 6 men to do the same job?

probably fourteen days, 16 days at most ?


If a job takes 12 men 4 hours to complete how long should it take 15 men to complete the job?

answer:for a problem like this you have to compute how many person-hours it will take to complete the job and then it's easy to figure out the total time.so,let j = total job person-hours = 12 people * 4 hours = 48 person-hoursso, we know we need 48 person-hours to complete the entire job. so, given that we have now 15 people to complete the job,let t = total time to complete job with 15 people = 48 person-hours / 15 people = 3.2 hours, or 3 hours 12 minutestherefore, for a job that takes 12 people 4 hours, assuming there is no particular constraint on the amount done per person, the job can be done in 3 hours 12 minutes with 15 people. (for instance, although one woman can have a baby in nine months, 9 women can't have a baby in one month)previous answer:I think it'll be 1hourmy own conclusion


If it took 8 men 10 hrs to build a wall how long would it take 4 men to build?

20 hours