Question

A construction plan calls for a stud (nail) 3 1/2 inches thick to be covered on both sides with 3/8 inches of sheet rock. What is the total thickness in the resulting wall?

Answer 1

Step 1:

$\text{Thickness of stud = 3}\frac{1}{2}\text{ inches}$

Step 2:

Next, find the total thickness by adding all.

$\begin{gathered} =\text{ 3}\frac{1}{2}\text{ + }\frac{3}{8}\text{ + }\frac{3}{8} \\ =\text{ }\frac{7}{2}\text{ + }\frac{3}{8}\text{ + }\frac{3}{8} \\ =\text{ }\frac{28\text{ + 3 + 3}}{8} \\ =\text{ }\frac{34}{8} \\ =\text{ 4}\frac{1}{4\text{ }}\text{ inches} \end{gathered}$

Step 3

Total thickness in the resulting wall

$=\text{ 4}\frac{1}{4}\text{ Inches}$