Question 983074: You have 400 tasks to complete, each task takes 45 mins to complete. How many people is needed to complete in 7 hours? Answer by Fombitz(32388) (Show Source):
You can put this solution on YOUR website! There are 60 minutes in each hour so you have a total of 420 minutes.
Each person could complete tasks in the 7 hours.
Rounding down makes it 9 tasks.
So you need, persons.
Rounding up to 45 persons will ensure that you complete the 400 tasks in less than 7 hours.