Subject :ICSO     Class : Class 5 
                                                                        Subject :ICSO     Class : Class 1 
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Subject :ICSO     Class : Class 3 
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Subject :ICSO     Class : Class 3 
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Subject :ICSO     Class : Class 3 
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Subject :ICSO     Class : Class 1 
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Subject :ICSO     Class : Class 6 
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Subject :ICSO     Class : Class 5 
                                                                        Ans 7:
Class : Class 5 
                                                                                                    
                                                                                                    I think 11 is the ans. because it is the only prime number in the given options and 847 is a multiple of 11 bcz 847÷ 11 = 77
                                                                                                
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Subject :ICSO     Class : Class 2 
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Subject :ICSO     Class : Class 6 
                                                                         
             
             
         
                                                                     
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
