There are 80 men in a race. 1/4 of the men tripped and were unable to finish. 2/3 of the remaining men were dehydrated and 1/5 of those dehydrated men couldn't finish the race. How many men finished the race?
1/4 of 80 men is 80/4=<<80/4=20>>20 men
20 men couldn't finish, so 80-20=<<80-20=60>>60 men remain
60*2/3 = <<60*2/3=40>>40 men were dehydrated
1/5 of the dehydrated couldn't finish 40*1/5=<<40*1/5=8>>8 men
60-8=<<60-8=52>>52 men finished the race
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