7, 5, 9, 12, 18, 36, 47, 72, _?

• the questn is wrong,the actual sequence is
  7 5 9 12 18 26 36 47 72,
  1st series 7 9 18 36 72
  2nd series is 5 12 26 47
  12-5=7
  26-12=14
  47-26=21
  so the next term in dis series will be 28+27=75
• 11 years agoHelpfull: Yes(8) No(1)
• Well guy's i can't see 26 in the question :p
• 11 years agoHelpfull: Yes(7) No(0)
• I can't understand that how you people are assuming 26 in your series...
• 11 years agoHelpfull: Yes(5) No(0)
• 75
  Let 1st series 5,12,26,47,_
  2nd series 9,18,36,72
  In 1st series, difference between the two consecutive numbers is multiples of 7
  12-5=7
  26-12=14
  47-26=21
  next difference will be 28,
  next num is=47+28=75
  Finaaly, it like 5,9,12,18,26,36,47,72,75.
• 11 years agoHelpfull: Yes(4) No(1)
• 75
  Let 1st series 5,12,26,47,_
  2nd series 9,18,36,72
  In 1st series, difference between the two consecutive numbers is multiples of 7
  12-5=7
  26-12=14
  47-26=21
  next difference will be 28,
  next num is=47+28=75
  Finally, it like 5,9,12,18,26,36,47,72,75.
• 11 years agoHelpfull: Yes(2) No(0)
• d ans is 75 .........................5, 9, 12, 18, 26, 36, 47, 72, _?
  it is 5 ...... 12....... 26......... 47
  12= 5+7
  26= 12+2×7
  47=26+3×7
  Next is 47+4×7=75
  and 9, 18, 36, 72 hence next 144
  Therefore 5, 9, 12, 18, 26, 36, 47, 72, 75, 144
• 11 years agoHelpfull: Yes(1) No(0)
• 75=ans
  7*4+47=75
• 11 years agoHelpfull: Yes(1) No(0)
• seriese mistake......
  
• 11 years agoHelpfull: Yes(0) No(0)