-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.
The two consecutive whole numbers that 20 lies between are 19 and 21. This can be determined by recognizing that 20 is the average of 19 and 21. In other words, (19 + 21) / 2 = 20. This demonstrates that 20 is exactly halfway between 19 and 21 in the number line.
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
13 and 19.
They are: 19+2 = 21
19
21 has the most factors of the given numbers.
The least common multiple of 21 , 19 = 399