In the movie when Cumberbatch said the following phrase
There are 159 million, million, million possible Enigma settings. All we had to do was try each one. But if we had 10 men checking one setting a minute for 24 hours every day and seven days every week
10 men checking one setting a minute
does it mean 10 men checking on single setting in one single minute, or that each of the 10 men is checking a setting in a minute, which will make 10 settings for one minute?