In a class of 40 students Ranjana is on 8th position from top and Kardam is 13th position from bottom. Umesh is on exact middle position between them. What is position of Umesh from bottom end ?

23rd 18th 19th 24th

23rd

40 – 8 – 13  =  19 students in between R & K umesh position  =  13 + 9 + 1 = 23rd position from the end.