Ahouse on a floor plan is 10.5 inches long and 6.5 inches wide. if the scale used is 0.5 inch = 2 ft, how long is the actual house?

To solve this problem you must apply the proccedure shown below:

 1. You have the following information given in the problem above:

 - The house on the plan is 10.5 inches long and 6.5 inches wide.
 - The scale used is 0.5 inch=2 ft

 2. Therefore, you have:

 0.5 inch2 feet
 10.5 inches--x

 x=10.5x2/0.5
 x=42 feet

 Therefore, the answer is: 42 feet long.
 

The percent increase is 25%