Shubham is ranked 7th from the top and Karuna is ranked 13th from the bottom in a class of 19 students. How many students are there between Shubham and Karuna?
Sum of positions of an item from top(right) and bottom(left) of a list is always equal to the sum of the positions of the first and last items. So position of Shubham from the bottom is = 19 - 7 + 1 = 13. Number of students between them is: difference of 13 and 7 (minus 1) = 5