सुनीता अपनी कक्षा में ऊपर से 10वें और नीचे से 18वें स्थान पर है। कक्षा में कितने छात्र हैं?

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?