Answer:
At Bletchley Park, the ten thousand people on the staff figured out over six thousand codes, some of which were very important to the war effort.
Step-by-step explanation:
This passage sums up the text in the question because it shows all the information that is important and relevant for the reader to understand the message that the original text wants to pass.
The section used as a summary tells us where the actions mentioned in the text happened, how many people were working there, what their work was and what was the importance of this work, that is, the section shows everything that needs to know about the original text .