Respuesta :

Since 15 workers did 8 hours of work, the total amount of work needed is 120 hours. Half of this job would be 60 hours. Then divide this amount by the 5 workers doing the job. This would make the job 12 hours
irspow
J=15w*8h=120(worker*hours)

5h=120/2

5h=60

h=12 hours

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