11,14,12,15,13,16,?

• 
  
  14 17
  
  
  
• 12 years agoHelpfull: Yes(6) No(0)
• +3, -2,+3,-2....... 16, 14
• 9 years agoHelpfull: Yes(1) No(0)
• take two series
  1st one is...11,12,13,?.....next no is 14
  2nd one is....14,15,16,?.....next no is 17
  so the next two no are .....14 and 17
• 9 years agoHelpfull: Yes(0) No(0)