Q:
      
      
         
            
Choose the correct alternative that will continue the same pattern and replace 'x' in given series 1,2,6,15,31,56,x
         
       
      
      
      
          
      
      
          Answer & Explanation
         Answer: D) 92         
         
Explanation: The pattern is + 1*1,+ 2*2, +3*3, + 4*4,+ 5*5,+ 6*6, . . . . . . .
 So missing term is 56+36=92
       
      
      
      
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