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# What is a rule to find the sum of 1 plus 2 plus 3 plus 4 plus 5 plus 4 plus 3 plus 2 plus 1?

Updated: 12/22/2022

Wiki User

13y ago

The answer is 25 but I do not know the rule. If someone else knows the rule feel free to edit my answer.

first thing i would like to tell that their no particular rule to solve this problem. But if we consider the working of calculator then the addition will be done as follows.

((((((((1+2)+3)+4)+5)+4)+3)+2)+1) = 25

(((((((3+3)+4)+5)+4)+3)+2)+1) = 25

((((((6+4)+5)+4)+3)+2)+1) = 25

(((((10+5)+4)+3)+2)+1) = 25

((((15+4)+3)+2)+1) = 25

(((19+3)+2)+1) = 25

((22+2)+1) = 25

(24+1) = 25

solve from innermost bracket towards outer

This is just a consideration of calculator if you solve through calculator the producer will look as above.

If any one knows any simple answer please feel free to continue this discussion.

Wiki User

13y ago

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Q: What is a rule to find the sum of 1 plus 2 plus 3 plus 4 plus 5 plus 4 plus 3 plus 2 plus 1?
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