Answer:
I don't know I don't know I don't know 
 
        
                    
             
        
        
        
Answer:
a movement one single movement cultivating one group
 
        
             
        
        
        
I assume you're asking about #19? 
24 students total, teacher gives each PAIR of students 3 magnets. 
There are 12 pairs of students, then, and the teacher has given 9 of those pairs their 3 magnets, leaving 3 pairs without their magnets.
3 pairs remaining to get 3 magnets (3*3=9) 
The teacher needs 9 more magnets.
        
             
        
        
        
Answer:
19/100
It's because it is the answer