Anshul ranks 38th from the top and 34th from the bottom in his class. How many students are there in his class?

In a row of 48 people facing north, Pari is 13th from the right end. If Vivek sits 16th to the left of Pari, what is Vivek's position from the left end of the line?

Dayanand ranked 17th from the top and 11th from the bottom in his class. How many students are there in the class?