In a straight row of students facing north, P is 32nd from the left end and 47th from the right end of the row. Find the total number of students in the row.

In a class of 58 students, Tanvi secured the 26th rank from the top. Anaya's rank is one position lower (worse) than Tanvi's rank. Find the number of students who secured a lower rank than Anaya.

Mr. Kell ranked 155th from the bottom and 37th from the top in his class. How many students are there in his class?