Planning & EstimatingQuestion 540 of 700
A slab is 24 ft wide. Reinforcing bars run in one direction spaced 12 inches on center, with a bar at each edge. What is the MINIMUM number of bars in that direction?
a.24 bars
b.25 bars
c.23 bars
d.12 bars
Explanation
Number of spaces = width divided by spacing = 24 ft / 1 ft = 24. Because a bar sits at each edge, bars = spaces + 1 = 25. Option a counts spaces only. Option c subtracts instead of adds. Option d divides by the wrong figure. When bars occupy both edges, add one to the number of spaces.
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