Monu  is 23th from left end and Shinu is 8th from right end . If there are total 43 students in row . Find how many students are between Monu and Shinu.

12

Total number of students in a row = rank of Monu from left end + Rank of Shinu from right end + number of students between Monu and Shinu

 43= 23 + 8 + number of students between Monu and Shinu

number of students between  Monu and Shinu = 43 - 31 = 12