Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_39442 ( "School Name" text, "City" text, "Students" real, "FTE Teachers" real, "Pupil/Teacher Ratio" real )

### Question ###
What is the highest number of students for schools in Campbell with pupil to teacher ratios over 25?

### Accurate SQL ###

SELECT MAX("Students") FROM table_39442 WHERE "City" = 'campbell' AND "Pupil/Teacher Ratio" > '25'