Correct Answer - Option 4 : 6
Given:
30 persons can do a piece of work in 24 days
Formula Used:
Work = Efficiency × Time
Calculation:
Total work = 30 × 24
⇒ 720
Number of persons = 720/20
⇒ 36
More persons = 36 – 30
⇒ 6
∴ 6 more persons are required to complete the work in 20 days.
