The median of the following marks of  the students in a class, is 34,32,48,38,24,30,27,21,35

Arranging the data in ascending order of magnitude, we have  21,24,27,30,32,34,35,38,48Since there are 9, an odd number of items. Therefore, median is  the value of 9+12th  observation i.e., 32.