Question

A company usually sends 9 workers to install a security system in a school building, and they complete the task in 96 minutes. Today, they only have 3 workers to do the same size job. How time should be scheduled to complete the job

Answer 1

Answer:

288 minutes needed

Step-by-step explanation:

9 workers take 96 minutes each to finish. So the whole job takes:

9 x 96=864 worker-minutes

So 3 workers will take:

864/3=288 minutes working together