Question

Olga is trying to figure out the length of a pool at a hotel that is to be built. A one inch door in the model will become a 3 foot door in reality. If the length of the pool is 7 inches on the model, how long will it be when it is built?

Answer 1

the length of the pool is 7 inches on the model, how long will it be when it is built?

Answer 2

1 inch × 18 feet  
6 inch × 3 feet 

18 ft + 3 in = 21 

7 inches and 21 feet