A team of 20 people can complete a work in 15 days. After working for 6 days, 10 workers leave. How many additional days will it take for the remaining workers to finish the work?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 18.
Total work = 20 × 15 = 300 person-days
Work in 6 days = 20 × 6 = 120
Remaining work = 180
Remaining workers = 10
Days = 180 ÷ 10 = 18