2,5,12,31,81,__,__

• 2,5,12,31,81,__,__
  
  series will be
  
  2,5,12,31,81, 212, 555
  
  12= 5*2+2
  31= 12*2+5+2
  81= 31*2+12+5+2
  Similarly 81*2+31+12+5+2 = 162+50=212 and 212*2+81+31+12+5+2 =555
• 12 years agoHelpfull: Yes(6) No(1)
• Next numbers in series will be 212 and 555
  
  2,5,12,31,81, 212, 555
  
  logic is already given by Aman.
• 12 years agoHelpfull: Yes(2) No(1)
• hai i m ramesh!....
  i solved it!......
  2*15=30+1=31
  5*16=80+1=81
  12*17=224+1=225
  31*18=558+1=559..
  ans(225,559)
• 12 years agoHelpfull: Yes(1) No(7)