<PRE><B>Question 1043298</B>
Draw a picture of the problem
:
L = 2(x/2) + na + (n+1)s where s the width of each space
:
L = x + na + (n+1)s
:
(n+1)s = L - x - na
:
**********************
s = (L -x -na) / (n+1)
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:


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