SOLUTION: s=33+34+35+36+...+110

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Question 775390: s=33+34+35+36+...+110
Answer by Alan3354(69443) About Me  (Show Source):
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s=33+34+35+36+...+110
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33 to 110 is 78 numbers
Arrange them in 39 pairs, 33+110, 34+109, 35+108 etc.
--> 39 pairs * 143
= 5577