97,86,73,58,45

• 97 - 11 = 86
  86 - 13 = 73
  73 - 15 = 58
  58 - 13 = 45
  so that the next difference should be 11
  45 - 11 = 34
  answer=34
• 7 years agoHelpfull: Yes(3) No(1)
• 97 - 11 = 86
  86 - 13 = 73
  73 - 15 = 58
  58 - 17 = 41;
  Wrong series 41 in place of 45
• 8 years agoHelpfull: Yes(2) No(0)
• all decrease by an arithmetic progression 11, 13, 15,17,
  next in the series will be 26 decreasing from 45 by 19
  
• 7 years agoHelpfull: Yes(2) No(0)
• 97-11=86,86-13=73,73-15=58,58-17=45,45-19=24
• 8 years agoHelpfull: Yes(1) No(0)
• 97-86=11
  86-73=13
  73-58=15
  58-45=13
  45-15=30
  so 30 will be the ans
• 7 years agoHelpfull: Yes(0) No(0)
• 86-28=58 , 58-28=30
  
• 7 years agoHelpfull: Yes(0) No(0)
• The number 45 is wrong it should be 41
  Because the series follows the difference of 11,13,15,17.
• 7 years agoHelpfull: Yes(0) No(0)
• The pattern is - 11, - 13, - 15, - 13,...
  .'. Missing number = 45 -11 = 34.
• 4 years agoHelpfull: Yes(0) No(0)