A company is constructing a bridge, and they estimate that it will take 60 days to complete the project. Initially, they assign 150 workers to the task, and after 45 days, they decide to hire an additional 100 workers and the work was finished on time as estimated. If they had not hired the additional workers, how many days behind schedule would the project be finished?

To finish the project on time, 150 workers labored for 45 days and then 250 workers labored for the remaining 15 days. The total work is calculated as (150 workers * 45 days) + (250 workers * 15 days) = 10500 worker-days. If the extra 100 workers were not hired, the 150 workers would need 10500 / 150 = 70 days to finish the entire project. This is 10 days behind the original 60-day schedule.

• Thanks
• Wrong explanation