For this case we have that by definition:
1 foot equals 12 inches
Then, the sections measure:
1ft ------------> 12in
4ft ------------> x
Where "x" represents the inches of each section.
[tex]x = \frac {4 * 12} {1}\\x = 48[/tex]
Thus, each section measures 48 inches.
If the pieces of wire to be removed must be 5 inches each, then from a section they are removed:
[tex]\frac {48} {5} = 9.6[/tex]
Now, from each section you can remove 6 pieces of wire.
Then, from 6 sections, it takes [tex]6 * 6 = 36[/tex] pieces of wire.
Answer:
36