Five workers have been hired to complete a job. If one additional worker is hired, they could complete the job $8$ days earlier. If the job needs to completed $28$ days earlier, how many additional workers should be hired?
Job / 5 = number of worker_days required
job / ( 5 +1) = job/5 - 8
job = 6 job/ 5 - 48
-1/5 job = -48
job = 240 worker_days <==== so it takes 5 workers 48 days
to complete in 20 days ( 28 days earlier)
240 worker _ days / x = 20
x = 12 workers required you will need to hire an dditional 7 workers over the original 5
Job / 5 = number of worker_days required
job / ( 5 +1) = job/5 - 8
job = 6 job/ 5 - 48
-1/5 job = -48
job = 240 worker_days <==== so it takes 5 workers 48 days
to complete in 20 days ( 28 days earlier)
240 worker _ days / x = 20
x = 12 workers required you will need to hire an dditional 7 workers over the original 5