If you consider positive and negative numbers, there are infinitely many combinations of three numbers that will add to 13.65. If you stick to positive numbers the number of combinations may not be infinite, but it will certainly be larger than anyone would bother counting.
292, as a percentage of 1365 is 100*292/1365 = 21.392% (to 3 dp)
1.5, 2.25 and 572.25, when added together is one possible set of numbers.
2 + 3 = 5 3 + 2 = 5 The order of the numbers that are being added does not make a difference.
Add all of the numbers up, and then divide that result by how many numbers there were, e.g. 1,2,3,4,5. Added up they make 15. As there are five numbers there, you divide 15 by 5, and you get 3. Voila.
2, 11 and 31, are prime and, when added together, make 44.
1365
292, as a percentage of 1365 is 100*292/1365 = 21.392% (to 3 dp)
1, 2 and 21 when added.
1.5, 2.25 and 572.25, when added together is one possible set of numbers.
2.929 and 17.071 (to 3 dp)
3+3=6 that is 2 #s that can be added together to make 6
3,8 and 14
1, 2, 3 and 559 : added together, make 565.
455
20
you can't because any three odd numbers will equal to an odd number. eg. 1+3+5=9
2 + 3 = 5 3 + 2 = 5 The order of the numbers that are being added does not make a difference.