SOLUTION: An arithmetic series has 24 terms. The sum of the 2nd and 23rd term is 45. What is the sum of all the terms? (If you pair up the first and last terms, second term and second last t

Question 1083540: An arithmetic series has 24 terms. The sum of the 2nd and 23rd term is 45. What is the sum of all the terms? (If you pair up the first and last terms, second term and second last term, the sums are equal)
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
If r term number ,
the sum is

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