Each Ferris wheel in paradise park has 19 seats. Each seat in a Ferris wheel can hold 15 people. How many people can ride 20 Ferris wheels at the same time?
There are 19 seats in each Ferris wheel. 
There are 15 people in each seat. 
There are 20 Ferris wheels. 

19 seats * 15 people * 20 Ferris wheels = 5700 people