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}(1)/(2)\text{ inches}`

Step 2:

Next, find the total thickness by adding all.

`\begin{gathered} =\text{ 3}(1)/(2)\text{ + }(3)/(8)\text{ + }(3)/(8) \\ =\text{ }(7)/(2)\text{ + }(3)/(8)\text{ + }(3)/(8) \\ =\text{ }\frac{28\text{ + 3 + 3}}{8} \\ =\text{ }(34)/(8) \\ =\text{ 4}\frac{1}{4\text{ }}\text{ inches} \end{gathered}`

Step 3

Total thickness in the resulting wall

`=\text{ 4}(1)/(4)\text{ Inches}`