It takes 4men 5days to dig a trench. If the trench must be dug in 2days, how many men will it take, working at the same rate

Answer 1

If it takes 4 men 5 days to dig a trench, this means that 1 man can do the job in 4*5 = <<4*5=20>>20 days.
Since the trench needs to be dug in 2 days, it would take 20/2 = <<20/2=10>>10 men to complete the job in the same amount of time. Answer: \boxed{10}.