Post the map
we need to see α photo in order to answer the question.
        
                    
             
        
        
        
Answer:
12 cleaners
Step-by-step explanation:
8 cleaner can clean in 3 hours = 1 office 
1 cleaner can clean in 3 hours =  part of job
  part of job 
1 cleaner can clean in 1 hours =  part of job
  part of job 
Let the number of cleaner required to finish the job in 2 hours = x 
hence
x cleaner can clean in 1 hours =  part of job
  part of job 
x cleaner can clean in 2 hours =  part of job
  part of job 
Hence 




Hence we need 12 men to complete the same job in 2 hours
 
        
             
        
        
        
Answer:

Step-by-step explanation:
Given:
Simplify The given choice.




Therefore, the first option  is correct.
 is correct.