Question 1179042
.
<pre>

Let n be the most possible number of students in the class under given condition.


Then in the worst case they checked out  2n + 1 of her books.


So, our equation to find "n" is


    2n + 1 = 35.


It gives  n = {{{(35-1)/2}}} = 17.


<U>ANSWERE</U>.  There were 17 students in the class, at most.
</pre>

Solved.


-------------


Do not forget to post your "THANKS" to me for my teaching.