Question 1
In a row, Bina is 14th from the left and Sneha is 23th from the right. They interchange their positions. Now, Bina becomes 21th from the left. What is Sneha's new rank from the right?
First find total: T = 21 + 23 - 1 = 43. After interchange, Sneha takes Bina's old position from left (14). So Sneha's rank from right = T - 14 + 1 = 43 - 14 + 1 = 30.