5,15,30,135,405,1215,3645
Which term is not suitable in the given sequence...

• 30 is not suitable
  5*3=15
  15*3=45
  45*3=135
  135*3=405
  405*3=1215
  1215*3=3645
  
  
• 11 years agoHelpfull: Yes(23) No(0)
• 5*3=15
  15*3=45
  45*3=135
  135*3=405
  405*3=1215
  1215*3=3645
  therefore 30 is not suitable in series.
• 11 years agoHelpfull: Yes(3) No(0)
• 5*3=15
  15*3=45
  45*3=135
  135*3=405
  405*3=1215
  1215*3=3645
  so here 30 is not suitable
• 11 years agoHelpfull: Yes(1) No(0)
• 30 it shd be 45...as
  5*1
  5*3
  5*3^2
  5*3^3
  5*3^4
  5*3^5
  5*3^6........thank u
• 11 years agoHelpfull: Yes(1) No(0)
• Multiply every number by 3
  then we get a diff. Number in series
  5,15,45,135,405,1215,3645
  
  and given series is
  5,15,30,135,405,1215,3645
  
  so 30 is placed by 45 to get correct ans
• 11 years agoHelpfull: Yes(1) No(0)
• Multiply every number by 3
  then we get a diff. Number in series
  is 30
• 11 years agoHelpfull: Yes(1) No(0)
• 30 is not rightly placed in the sequence
• 11 years agoHelpfull: Yes(0) No(0)
• I thnk there should be 35 instead of 30.
• 11 years agoHelpfull: Yes(0) No(3)
• 30 is not suitable..
  the given sequence is power of 3 cycles that is multiplied with the number 5.
• 11 years agoHelpfull: Yes(0) No(0)
• Multiply every number by 3
  then we get a diff. Number in series
  5,15,45,135,405,1215,3645
  
  and given series is
  5,15,30,135,405,1215,3645
  
  so 30 is placed by 45 to get correct ans
• 11 years agoHelpfull: Yes(0) No(0)
• 30
  all others have 5 in units place xcept 30
• 11 years agoHelpfull: Yes(0) No(1)
• 45
  
  15/5=3
  45/5=9
  135/5=27
  405/5=81
  .
  .
  .
  3,9=3^2,27=3^3,81=3^4.......
• 10 years agoHelpfull: Yes(0) No(0)