Ritik is ranked 6th from the top in his class, while Akshay is 18th from the bottom. If their positions are interchanged, Akshay becomes 15th from the bottom. What is the total number of students in the class?

In a row of 53 students facing the north, Yaki is 19th from the right end. If Mosi is 24th to the left of Yaki, then what is Mosi's position from the left end of the line?

In a row of 53 people facing North, Anupama is 32nd from the right end. If Priya sits 18th from the right end, how many people sit between Anupama and Priya?