Find the missing number in the series: 2, 5,__ , 19 , 37, 75
Ans: 9

• 2*2+1=5
  5*2-1=9
  9*2+1=19
  19*2-1=37
  37*2+1=75
  
  Its like an alternate +/-
• 12 years agoHelpfull: Yes(44) No(0)
• simply:-
  2*2+1=5
  5*2-1=9
  9*2+1=19
  19*2-1=37
  37*2+1=75.
  hence missing term is equal to 9.
• 12 years agoHelpfull: Yes(5) No(1)
• 2*4+1=3rd=9
  5*4-1=4th=19
  9*4+1=5th=37
  19*4-1=6th=76
• 12 years agoHelpfull: Yes(2) No(6)
• there is 2 series.
  1) 2,__,37
  2) 5,19,75
  for the first series,
  2,(2*4)+1=9,(9*4)+1=37
  for 2nd series,
  5,(5*4)-1=19,(19*4)-1=75
  so the ans is 9.
• 12 years agoHelpfull: Yes(2) No(1)
• ans will be 9
• 12 years agoHelpfull: Yes(1) No(0)
• 2*2+1=5
  5*2-1=9
  9*2+1=19
  19*2-1=37
  so ans is 9
• 12 years agoHelpfull: Yes(1) No(0)
• ans is 11,
  2+3=5
  5+6=11
  19+18=37
  37+38=75
• 12 years agoHelpfull: Yes(0) No(1)
• 2,5,__,19,37,75...........ans 9
  Explain:
  2*2+1=5
  5*2-1=9
  9*2+1=19
  19*2-1=37
  37*2+1=75
  
  Its like an alternate +/-
• 6 years agoHelpfull: Yes(0) No(0)