Question

A house blueprint shows the bedroom is 5 inches wide and the actual length of the bedroom is 20 feet wide. If the bedroom has a length of 16 feet what is the length on the blueprint?

Answer 1

We can use proportions to solve this problem.

Let x be the length on the blueprint. Then we have:

5 inches / x = 20 feet / 16 feet

Simplifying the right side gives:

5 inches / x = 5/4

Cross-multiplying gives:

5x = 20

Dividing by 5 gives:

x = 4

Therefore, the length on the blueprint is 4 inches.