Find the median of each of the following sets of numbers:

(i) 25, 6, 13, 20, 15, 8, 22, 9, 16, 21, 18

(ii) 15, 32, 41, 13, 51, 35, 0, 18, 56, 39, 37

(iii) 40, 31, 25, 36, 27, 38, 28, 35

(iv) 56, 81, 51, 42, 69, 85, 72, 35, 66, 92

(v) 15, 9, 47, 12, 48, 10, 75, 3, 17, 81, 4, 27

The marks of 15 students in an examination are given below :

17, 35, 21, 17, 19, 25, 29, 23, 24, 31, 40, 19, 22, 20, 26.

Find the median score.

The weights (in kg) of 8 children are given below:

10.6, 12.7, 9.8, 17.2, 13.4, 15, 16.5, 14.3

Find the median weight.

(i) The median of the observations 11, 12, 14, 18, (x + 4), 30, 32, 35, 41 arranged in ascending order is 24. Find the value of x.

(ii) If 10, 13, 15, 18, x + 1, x + 3, 31, 36, 38, 42 are the observations arranged in ascending order with median 28, find the value of x.