Series " 5,15,30,135,405,1215,3645. Find the odd man.

• Answer:30(45 instead of 30)
  5*3=15
  15*3=45
  45*3=135
  135*3=405
  405*3=1215
  1215*3=3645
  Here odd is 30.
• 10 years agoHelpfull: Yes(24) No(2)
• ans is 5
  bcs all d options r multiples of 15 except 5
• 10 years agoHelpfull: Yes(2) No(6)
• 30 is the odd number !!!
• 10 years agoHelpfull: Yes(2) No(0)
• ans: 30
  30 should be replaced by 45
  bcz every number is 3times of its previous number
  15 = 3*5
  45 = 3*15
  135 = 3*45
  405 = 3*135
  1215 = 3*405
  3645 = 3*1215
• 10 years agoHelpfull: Yes(1) No(0)
• answer is 30.
  5*3=15
  15*3=45
  45*3=135
  and so on.....so odd no is 30
  
• 10 years agoHelpfull: Yes(1) No(0)
• ans:30
  5*3=15
  5*3^2=45(here 30 is given)
  5*3^3=135
  5*3^4=405
  5*3^5=243
  5*3^6=3645
• 10 years agoHelpfull: Yes(1) No(0)
• 5*3=15
  15*3=30
  30*3=90 (but here 135 is given)
  135*3=405
  405*3=1215
  1215*3=3645
  so the odd one is 135
  
• 10 years agoHelpfull: Yes(0) No(6)
• Why can't be 5 an odd, as all other no.s are divisible by 3 but 5.
• 3 years agoHelpfull: Yes(0) No(0)