Correct Answer - Option 2 : 4
Given:
12 men take to complete work = 8 days
Calculation:
Total work done by 12 men = 12 × 8 = 96 unit
According to question
work done by 12 men in 3 days = 3 × 12 = 36 unit
Remaining work = 96 - 36 = 60 unit
3 more men added = 12 + 3 = 15 men
Number of days to complete remaining work = 60/15 = 4 days
∴ In 4 days will all of them together complete the remaining work.
