find the missing number in the series 8 2 14 6 11 ? 14 6 18 12

• Missing number is 9.
  
  Add first and last number.... . sum of 8+12=20
  add second and second last number .... sum = 2+18=20
  ..
  ...
  similarly , ? = 20-11=9
• 12 years agoHelpfull: Yes(8) No(0)
• missing number is 9
  coz,
  8,2,14,6,11,9,14,6,18,12(divide this to equal term)
  8,2,14,6,11 ----->1st term
  9,14,6,18,12------>2nd term
  1st term-->8-2,14-2,14-6,11-6=6,12,8,5(subtracting each term with its next term)
  2nd term-->14-9,14-6,18-6,18-12=5,8,12,6(it give the reverse of 1st term)
  
  
  so the missing term is 9
• 12 years agoHelpfull: Yes(0) No(1)
• the missing number is 1
  8-2,14-6,11-x,14-6,18-12
  6,8,11-x,8,6
  6,8,11-1,8,6(in order to get 10 sub 11 with 1)
  6,8,10,8,6
  so the answer is 1
• 12 years agoHelpfull: Yes(0) No(1)
• 6 -12 8 -5 -/+2 -5 8 -12 6
  8 2 14 6 11 ? 14 6 18 12
  
  ans :9
  
  by substracting left one from right one..
• 12 years agoHelpfull: Yes(0) No(0)