12
Average = sum of numbers 36+26+30+28= 120 sum of items =4 Ans =120/4
28
36
45
24.5 is the median.
12
21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39
13 + 16 + 18 + 20 + 21 + 26 + 27 + 27 + 28 + 36 + 39 + 42 + 43 = 356
21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40.
Alternating terms form the same pattern16 +5 = 2126 + 5 = 31Odd terms would then be 16, 21, 26, 31, 36, 41Even terms would be 26, 31, 36, 41, 46, 51Putting them together16, 26, 21, 31, 26, 36, 31, 41, 36, 46, 41, 51, ...
16+10=26 26-5=21 21+10=31 31-5=26 26+10=36
The even numbers between 26 and 36 are 28, 30, 32, and 34.
30
Average = sum of numbers 36+26+30+28= 120 sum of items =4 Ans =120/4
28
The composite numbers greater than 20 and less than 40 are 21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, and 39.