3,11,31,69, ____

• Ans:131
  
  The series is in the form of
  
  1^3+2, 2^3+3, 3^3+4, 4^3+5, 5^3+6, 6^3+7.......
  
  3, 11, 31, 69, 131, 223......
• 10 years agoHelpfull: Yes(7) No(0)
• 131
  difference between no's is in order 8,20,38.So next one is 62,because difference between no of the series is 12,18,24.
  So,ans will be 131
• 10 years agoHelpfull: Yes(3) No(0)
• 3*3=9+2=11
  11*3=33-2=31
  31*3=63+6=69
  69*3=207-6=201
• 10 years agoHelpfull: Yes(1) No(2)
• 131 difference b/w corresponding digits and adding them in reverse
• 10 years agoHelpfull: Yes(0) No(0)