In a row of 41 people facing North, Nimita is 11th from the left end while Shivani is 19th from the right end. How many people are there between Nimita and Shivani?

In a row of 47 people facing north, Umesh is 15th from the right end. If Ketan sits 19th to the left of Umesh, what is Ketan's position from the left end of the line?

Jhanvi ranked 14th from the top and 6th from the bottom in her class. How many students are there in the class?