Answer:
The greatest number of the books that could have been borrowed during the week are 36.
Step-by-step explanation:
Let the total number of books or N = 40
Let the number of borrowed books be = B
As given, the number of books available are greater than 22.
We get the following equation as per scenario:

=> 
=> 
Substituting N = 40, we get ;

Therefore, the maximum possible number of borrowed books will be 36.