Answer :

Answer:

17

Step-by-step explanation:

165/10=16.5 17 because the extra 5 students need a teacher !

Answer:

17 instructors

Step-by-step explanation:

                     16        

   10 |     165

                  - 10  

                      65        

             −       60

                        5

the extra 5 students need a teacher so we have to  add an extra 1

16+1=17

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