Question

The cost of building a new house is directly proportional to the number of square feet in the house. If a 1,500-square-foot house costs $120,000 to build, what does it cost to build a 2,400-square-foot house?
The cost of building a 2,400 -square-foot house is $_____.

Answer 1

If you divide 120,000 by 1,500 you will get the amount that it costs per square feet which you would then multiply by 2,400 to get 192,000. So the answer is $192,000