Average of 21, 24, 21 and 23 = (21+24+21+23)/4 = 22.25
The average is 24.
The average of 18, 24, and 27 is 23.
Add them all and divide by five.
21/24 - 23/24 = -2/24 or -1/12
23
22
24
you can be 21 at the youngest and can really work up to any age but the most average age is 23 and 24
19 + 24 + 20 = 63/3 = 21 The average of the three numbers is 21.
23 is prime.
22
25.25 is the average.