-21
19 + 24 + 20 = 63/3 = 21 The average of the three numbers is 21.
22. 21 + 19 + 26 = 66. 66/3 = 22.
You add the numbers, then divide the result by 3. In this case you divide by 3 because there are 3 numbers.
Just over 20 18 + 19 + 21 + 23 = 81 81 / 4 (numbers) = 20.25
19 is prime number. 10, 21 and 62 are composite numbers.
No, they are three numbers, not one. 21 is composite.
There are 8 numbers. So you need to find the average of the 4th and 5th numbers when they are placed in order. So, average of 16 and 19 = 17.5
19
13 and 19.
They are: 19+2 = 21
21 has the most factors of the given numbers.
The least common multiple of 21 , 19 = 399