20/q = 7/9
20×9 = 7q
7q = 180
q = 180/7
        
             
        
        
        
Answer:
D
Step-by-step explanation:
 
        
                    
             
        
        
        
.=1, any figure after . is o
so, 31/100
        
             
        
        
        
Complete Question
The complete question is shown on the first uploaded image  
Answer:
The probability is  
Step-by-step explanation:
  From the question we are told that
         The number of cars packed is  
The objective of this solution is to find the probability that the car which has a sunroof also has four doors 
    This probability is mathematically represented as 
                
Baye's Rule define this probability mathematically  as 
              
    From the diagram 
           
and     
So 
        
 
       