Question 527643
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The number of posts is one more than the number of spaces between posts.


1 space = 2 posts means 90 feet per space.  (does not fit 8 to 14 range)


2 spaces = 3 posts means 45 feet per space: (No)


3 spaces = 4 posts meands 30 feet per space:  (No)


4 spaces (Not possible, 90 mod 4 not equal to zero)


5 spaces = 6 posts means 18 feet per space: (No)


6 spaces = 7 posts means 15 feet per space: (No, but close)


8 spaces (Not possible, see 4 spaces above)


9 spaces = 10 posts means 10 feet per space:  Fits.


10 spaces = 11 posts means 9 feet per space:  Fits.


11, 12, 13, 14, spaces not possible.


15 spaces = 16 posts means 6 feet per space:  (No)


John
*[tex \LARGE e^{i\pi} + 1 = 0]
My calculator said it, I believe it, that settles it
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