Correct Answer - Option 3 : 24
Given:
Number of men = 15
Number of hours taken = 48 hours
Concept used:
In time and work the total work is constant the number of men and the number of days or hours are inversely proportional to each other.
Calculations:
1 men complet a toal work in = 15 × 48
⇒ 720 hours
If we have to complete the work in 30 hours = 720 ÷ 30
⇒ 24 men
∴ The number of men required to complete the work in 30 hours is 24.
