Correct Answer - Option 2 : 40
Given:
Certain men take to complete a piece of work = 60 days
Formula Used:
Total work = Number of men × Number of days
Calculation:
Let us take the certain number of men as x
Total work done x men = x × 60
Time taken by (x + 8) men to complete the work = (60 - 10) = 50 days
According to the question,
60x = (x + 8) × 50
⇒ 60x - 50x = 400
⇒ x = 40 men
∴ The number of men originally is 40
