In a row of 49 students facing North, Anish is 17th from the right end. If Raghav is 12th to the left of Anish, what is Raghav's position from the left end of the line?

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?