SOLUTION: 1, 3, 5, 7, 9 A sequence is formed by repeating the five numbers above in the same order indefinitely. What is the sum of the first 124 terms of the sequence?

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Question 511346: 1, 3, 5, 7, 9
A sequence is formed by repeating the five numbers above in the same order indefinitely. What is the sum of the first 124 terms of the sequence?
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
The sequence goes like:

1,3,5,7,9,1,3,5,7,9,...,5,7.

{1,3,5,7,9} will occur a total of 24 times, so the sum of the first 24*5 = 120 terms is 24(1+3+5+7+9) = 600. The last four terms, 1,3,5,7, have a sum of 16 so the total sum is 616.