During the routine medical check-up in school, Nita notices that she is both the 12th tallest and the 12th shortest student in her class. If no two students in the class have the same height, how many students are there in the class?
Total students = 11 students taller than Nita + 11 students shorter than Nita + Nita;
= 11 + 11 + 1
= 23 students