Samriti and Samay are ranked 13th and 19th respectively in a class of 40. What are their respective ranks from the last.

28th & 22nd

Total number of students = Rank from top + Rank from bottom - 1 

Samriti  rank from last, 

Total number of students = Rank from top + Rank from bottom - 1 

rank from last = 40 + 1 - 13 = 28

Samay rank from last, 

Total number of students = Rank from top + Rank from bottom - 1 

rank from last = 40 + 1 - 19 = 22

 Ans. 28th & 22nd