SOLUTION: Find the sum of the sequence 41+42+43+44....112

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Question 835220: Find the sum of the sequence 41+42+43+44....112
Answer by Alan3354(69443) About Me  (Show Source):
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Find the sum of the sequence 41+42+43+44....112
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41 to 112 = 112 - 41 + 1 terms = 72 terms
The average is (112-41)/2 = 35.5
Sum = 72*35.5
= 2556