Question

You are a contractor who is installing a new wooden fence for a customer. The dimensions of the fence are 20 feet long and 6 feet high. If each piece of wood is 72 inches tall and 4 inches wide and the wood costs $1.10 per square foot, how much will the wood for the new fence cost?

Answer 1

$132

Explanation:

First we need to find the total number of woods required. This would be total area of fence divided by area of each wood. Remember to convert inch into feet.

`(area of fence)/(area of wood) \\=(20 * 6)/(6 * 0.3333) \\= 60 woods plank`

Now we know the total number of planks, we need to find what is the cost of each plank. We know that one wood plank area is 2 sq. ft ( 6*0.33333). Therefore, the cost of each plank is = cost per area(sq.ft) multiply by total area (sq. ft).

cost per plank = 2 * $1.10 =$2.20.

We have total planks = 60 units and we have cost per plank = $2.20.

So, we can find total cost as 60*2.20= $132