Question 1136584
First sort the numbers:

12, 15, 23, 30, 32<br>

Notice x must fall between 23 and 30:
12, 15, 23, x, 30, 32<br>

Median is the middle number if there are an odd number of data values,
otherwise it is the mean of the two values surrounding the middle.<br>

For this data (with six data points) to have a median of 25, we must have:
 (x+23)/2 = 25  -->  {{{ highlight( x = 27 ) }}}