• Number of estimated man-hours 2,910
• Number of hours in a work day 8
• Number of work days in one month 20
• Number of months in contract 6
• 2910 (total hours) / 8 (hours in 1 day) = 364 work days
• It will take one man 364 days to complete the contract.
• The contract says the job shall be completed in 6 months.
• 6 (months) x 20 (work days in 1 month) = 120 contract days.
• 364 (days for 1 man) / 120 (contract days) = 3 men
• The average man-load will be three men.