nxt num of d series 7,9,11,6,11,8,5,13,5,4,15 ???

• ans is:7,9,11,6,11,8,5,13,5,4,15,2,3,17
  
  7-1,9+2,11-3=6,11,8
  6-1,11+2,8-3=5,13,5
  5-1,13+2,5-3=4,15,2
  4-1,15+2
  so final 3 digits are 2,3,17
  
  
  
• 10 years agoHelpfull: Yes(2) No(0)
• 
  7,9,11
  6,11,8 ----> (7-1) , (9+2) , (11-3)
  5,13,5 (6-1) , (11+2), (8-3)
  4,15,2 ----> (5-1) , (13+2), (5-3)
  
  so ans : 2
  
  divide d series like above
  
  
• 10 years agoHelpfull: Yes(0) No(0)