SOLUTION: how to find the middle term of an ap if the no of terms are odd

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Question 839193: how to find the middle term of an ap if the no of terms are odd
Answer by Edwin McCravy(20056) About Me  (Show Source):
You can put this solution on YOUR website!
The middle term = the average of the first term and the last term.

For example, the arithmetic sequence

1, 4, 7, 10, 13, 16, 19

which has 7 terms (7 is an odd number of terms),
the average of the first and the last term is %281%2B19%29%2F2=20%2F2=10,
which is the middle term.

Edwin