Remark
You have to put the numbers in order to find the median.
16 29 40 66 94
When there is an odd number of terms, the median is the middle number (not the average). In this case the 3rd number or 40 is the median. <<<< Answer
If there is an even number of terms, you average the middle 2 to get the median.
16 29 40 66 94 100
The middle two terms are 40 and 66. the average is
(40 + 66)/2 = 106/2 =53
The median is 53 even though 53 is not in the series of numbers. It's a lot to grasp, but if you do enough of these questions, you will catch on.