A man hour is the product of a person multiplied by an hour. It is a unit of how long a task would take one person.
A task that takes 12 man hours, for example, would take 12 hours for one person to complete, six hours for two people, four hours for three people, three hours for four people, etc.
1 man x 12 hours = 12 man hours
2 men x 6 hours = 12 man hours
3 men x 4 hours = 12 man hours
4 men x 3 hours = 12 man hours
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A "man hour" is an hour of one person's time. If you work 8 hours a day you are working 8 man-hours. The difference between hours and man-hours becomes important when scheduling work for multiple people. If a project requires 100 man-hours then - in theory - if 10 people are allocated to do the work simultaneously, the project will be completed in 10 hours. 10 hours work done by 10 people gives you 100 man hours of work.
A normal value does not rule out disease. Normal values for the Westergren method are: Men 0 mm/hour-15 mm/hour; women 0 mm/hour-20 mm/hour; and children 0 mm/hour-10 mm/hour.
It has been three hours it is time to go we must leave in about one hour
21.57/hour
30 dollars an hour