Ankush is 15th from left end and Sahil is 10th from right end . If there are total 34 students in row . Find how many students are between Ankush and Sahil.

9

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

 34= 15 + 10 + number of students between  Ankush and Sahil

number of students between  Ankush and Sahil = 34 - 25 = 9