A contractor employed 69 workers to complete a work in 20 days. How many more workers he should employ to complete the work in 12 days?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 46 workers
Work = Number of workers × Number of days
Initial work = 69 × 20 = 1380 worker-days
Required workers × 12 = 1380
Required workers = 1380 ÷ 12 = 115
Additional workers = 115 − 69 = 46