Tired workers

Algebra Level 4

150 workers are engaged to complete a job and it is known that if they all work together the job will be completed in a certain number of days. However, after the first day of work, 4 workers resign. After the second day, another 4 resign. This pattern continues until the job is finally completed, 8 days over schedule.

Find the number of days in which the work was completed.

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