SOLUTION: The average of five consecutive odd numbers is 21. Which is the lowest number of the five? (1) 15 (2) 19 (3) 13 (4) Cannot be determined (5) None of these

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Question 394653: The average of five consecutive odd numbers is
21. Which is the lowest number of the five?
(1) 15 (2) 19 (3) 13
(4) Cannot be determined (5) None of these
Found 2 solutions by josmiceli, Alan3354:
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Call the consecutive odd numbers
n, n+%2B+2, n+%2B+4, n+%2B+6, and n+%2B+8
given:
%28+n+%2B+n+%2B+2+%2B+n+%2B+4+%2B+n+%2B+6+%2B+n+%2B+8%29%2F5+=+21
%285n+%2B+20%29%2F5+=+21
5n+%2B+20+=+105
5n+=+85
n+=+17
n+%2B+2+=+19
n+%2B+4+=+21
n+%2B+6+=+23
n+%2B+8+=+25
The answer is 17, so it's none of the choices given

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
That makes 21 the middle number, 2 below and 2 above.
--> 17, 19, 21, 23 & 25