Find the odd man out
5, 15, 30, 135, 405, 1215, 3645
A. 3645 B. 1215
C. 405 D. 30

• Ans. D.30
  
  5*3=15
  15*3=45
  45*3=135
  135*3=405
  405*3=1215....
• 13 years agoHelpfull: Yes(8) No(1)
• 5×3=15
  15×3=45
  45×3=135
  
  Odd no. Is
• 10 years agoHelpfull: Yes(0) No(0)
• Multiply each term by 3 to obtain the next term. Hence, 30 is a wrong number
  5*3=15
  15*3=45
  45*3=135
  135*3=405
  405*3=1215
  hence 30 is not in the series.So answer is 30 ;)
• 7 years agoHelpfull: Yes(0) No(0)