Answer:
38
Explanation:
To find the median, make sure the number are in increasing order (they are), then start crossing out the outside numbers until you meet in the middle:
32 36 38 39 42
/ 36 38 39 /
/ / 38 / /
The only number left is 38, so the median is 38.
If there were two numbers remaining, you would take the average of the two.
(Add both numbers and divide by 2)