I still didnt get it about NCO,NSO,IMO,IEO? Pls explain about all that things?
                                                                
                                                                
                                                                
                                                                    
                                                                        
                                                                          
                                                                            
                                                                                                         
                                                                                
                                                                                
                                                                                
                                                                                    
                                                                                    
                                                                                    
                                                                                        Ans 1:
                                                                                            
                                                                                            
                                                                                        
                                                                                        
                                                                                        
                                                                                        
                                                                                        
                                                                                        
                                                                                            
                                                                                            
                                                                                                THIS ARE TYEPES  OF   OLYMPIADS  NCO IS  IT   NSO IS  SCINCE  IMO IS  MATHS  IEO IS ENGLISH
                                                                                            
                                                                                            
                                                                                                
                                                                                                
                                                                                                
                                                                                             
                                                                                         
                                                                                
                                                                                    
                                                                                    
                                                                                    
                                                                                        Ans 2:
                                                                                            
                                                                                            
                                                                                        
                                                                                        
                                                                                        
                                                                                            
                                                                                                
                                                                                                    
                                                                                                    
                                                                                                        
                                                                                                     
                                                                                                 
                                                                                             
                                                                                         
                                                                                        
                                                                                        
                                                                                        
                                                                                            
                                                                                            
                                                                                                THIS ARE TYEPES  OF   OLYMPIADS  NCO IS  IT   NSO IS  SCINCE  IMO IS  MATHS  IEO IS ENGLISH