28, 33, 31, 36, ?, 39

A. 32 B. 34
C. 38 D. 40

• B. 34
  
  Series like +5,-2,+5,-2.......
  
  28 +5=33
  33 -2=31
  31 +5=36
  36 -2=34
• 12 years agoHelpfull: Yes(2) No(0)
• 28,33,31,36,?,39
  28 31 ? = 28,28+3,28+6=28,31,34
  33 36 39 = 33,33+3,33+6=33,36,39
  (or)
  28,28+5=33,33-2=31,31+5=36,36-2=34,34+5=39
  Answer:(B)34
  
• 12 years agoHelpfull: Yes(0) No(0)