Answer:
200 visitors went to screen 1. 
 
125 visitors went to screen 2. 
 
175 visitors went to screen 3. 
 
Step-by-step explanation: 
 
We will find number of visitors who went to screen 1 by finding 40% of 500 as we are told that 40% of 500 visitors went to screen 1. 
 
 
 
Therefore, 200 visitors went to screen 1. 
 
Now we will find number of visitors who went to screen 2. We are told that 25% of 500 visitors went to screen 2. 
 
 
 
Therefore, 125 visitors went to screen 2. 
 
Now we will find the number of visitors who went to screen 3 by subtracting combined number of visitors who went to screen 1 and screen 2 from total number of visitors. 
 
 
 
 
 
Therefore, 175 visitors went to screen 3.
Explanation: