2,5,_,19,37,75
find the missing term.

• the answer is 9
  
  2*2+1=5
  
  19*2-1=37
  
  37*2+1=75
  
  so in the above series first the number is doubled then 1 is either added or subtracted one after other. so
  5*2-1=9
  then
  9*2+1=19
  
• 11 years agoHelpfull: Yes(17) No(2)
• ans:9
  sequence is as follows:-
  2*2+1=5
  5*2-1=9
  9*2+1=19
  19*2-1=37
  37*2+1=75
• 11 years agoHelpfull: Yes(8) No(1)
• 2*2+1=5
  5*2-1=9
  9*2+1=19
  19*2-1=37
  37*2+1=75
  
• 11 years agoHelpfull: Yes(3) No(0)
• 2*2+1=5
  5*2-1=9
  9*2+1=19
  19*2-1=37
  37*2+1=75.
  so, answer is 9
• 11 years agoHelpfull: Yes(3) No(0)
• answer is 9
  2*2=1 first time and then
  2*2-1 second time so ans is 9.
• 11 years agoHelpfull: Yes(2) No(0)
• (2*2+1)=5
  (5*2-1)=9
  (9*2+1)=19
  (19*2-1)=37
  ............
  
• 11 years agoHelpfull: Yes(0) No(0)
• 2*2+1=5
  5*2-1=9
  9*2+1=19
  19*2-1=37
  37*2+1=75 so d missing term is 9
• 11 years agoHelpfull: Yes(0) No(0)
• 5*2+1=11 answer
• 11 years agoHelpfull: Yes(0) No(1)