5,9,12,18,26,36,47,71,_?

• Split the sequence in to 2
  5 _ 12 _ 26 _ 47 _ ?
  
  here
  5 + (1*7)=12
  12 + (2*7)=26
  26 + (3*7)=47
  47 + (4*7)=75
  Answer is 75
  
• 11 years agoHelpfull: Yes(50) No(0)
• ans:75
  5+(7)=12
  12+(14)=26
  26+(21)=47
  7,14,21 so next will be 28
  therefore
  47+(28)=75
• 11 years agoHelpfull: Yes(7) No(0)
• @ Divya..the question is to find the number next to 71...
  And Actually the question is wrong..its not 71,its 72
  Bcoz 9,18,36,72
  In detail,
  9, (9*2)=18 , (18*2)=36 ,(36*2)= 72........
• 11 years agoHelpfull: Yes(7) No(0)
• @Karthika : but 9,18,36,71.. iska kya hoga??? i mean ise kyu nhi consider kiya hai??
• 11 years agoHelpfull: Yes(5) No(1)
• 5,9,12,18,26,36,47,71,75,
  5 + (1*7)=12
  12 + (2*7)=26
  26 + (3*7)=47
  47 + (4*7)=75
• 11 years agoHelpfull: Yes(3) No(0)
• simply 47+28 = 75
• 11 years agoHelpfull: Yes(2) No(5)
• @ divya: 5 _ 12 _ 26 _ 47 _ "?"
  here only these digits produce the answer for the question mark and the other series 9,18,36..... is not required(This is an entire different sequence).
• 11 years agoHelpfull: Yes(1) No(1)