Given: Total number workers = 200 Scheduled to end within 250 days After 30 days 20 workers leave the job Concept used: Total work = Total workers × Time Calculations Total work = 200 × 250 = 50000 Work done by 200 workers in 30 days = 200 × 30 = 6000 Remaining work = 50000 – 6000 = 44000 Remaining workers = 200 – 20 = 180 Time taken by 180 workers to finish the remaining work = 44000/180 ≈ 245 days ∴ Time taken to complete the remaining work by 180 workers is 245 days