12 and 16 is another.
The composite numbers upto 28 are: 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28.Of these the ones that sum to 28 are: 4 and 24, 6 and 22, 8 and 20, 10 and 18, and 12 and 16. And out of these pairs the ones that have a gcd of 4 are: 4 and 24, 8 and 20, and 12 and 16.So two composite numbers that have a gcd of 4 and a sum of 28 can be either: 4 and 24, 8 and 20, or 12 and 16.
They can be 16 and 24
Composite factors of 24 are 4, 6, 8, 12 and 24. Sum of composite factors = 4+6+8+12+24 = 54.
They are 24 and 15 which are composite numbers
4 and 24, 12 and 16
12 and 16 is another.
The composite numbers upto 28 are: 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28.Of these the ones that sum to 28 are: 4 and 24, 6 and 22, 8 and 20, 10 and 18, and 12 and 16. And out of these pairs the ones that have a gcd of 4 are: 4 and 24, 8 and 20, and 12 and 16.So two composite numbers that have a gcd of 4 and a sum of 28 can be either: 4 and 24, 8 and 20, or 12 and 16.
4 and 24 is one such pair.
They can be 16 and 24
They can be 16 and 24
The numbers are 24, 25, 26, 27, 28 and their sum is 130
16 and 24
16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30,
Composite factors of 24 are 4, 6, 8, 12 and 24. Sum of composite factors = 4+6+8+12+24 = 54.
First sum all of the numbers: 16+32+8+8+16+24+24+48 = 176 Divide the sum by the total number of numbers in the list, in this case it is 8. So the mean is 176/8 or 22.
They are 24 and 15 which are composite numbers