SOLUTION: The fifth term of an arithmetic progression is 24 and the sum of the first tenth terms is 265. Write the first three terms of the sequence.

Question 720845: The fifth term of an arithmetic progression is 24 and the sum of the first tenth terms is 265. Write the first three terms of the sequence.
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
General arithmetic sequence term is , where n is a natural number, the index of a term. Based on that, what can you say about the term at n=5? Can you find a formula for the first n terms of an arithmetic sequence? Maybe refer to your book, or derive it yourself?

You should find that the sum of the first n terms of an arithmetic sequence is .
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