next one in the series
6,9,18,45,108,351,.....?

• the difference b/w t numbers are 3,9,27,81,243,..
  so the next difference would be 729.
  adding 729 to 351, we get 1080.
  ANS: 1080
• 11 years agoHelpfull: Yes(23) No(21)
• 6,18,108,?
  18/6=3
  108/18=6
  x/108=9
  x=972
• 11 years agoHelpfull: Yes(9) No(2)
• wrong question....
• 10 years agoHelpfull: Yes(6) No(4)
• 6and9dif3
  9and18dif3^2
  18and45dif3^3
  45and108dif3^4
  108and351dif3^5
  351and1080dif3^6
  ans:1080
• 10 years agoHelpfull: Yes(5) No(1)
• 952 in answer
• 11 years agoHelpfull: Yes(1) No(2)
• 972
  6,6*3=18,18*6=108,108*9=972
  
• 10 years agoHelpfull: Yes(1) No(0)
• the number series it self is wrong.Because the differnce between
  6,9 is 3
  9,18 is 9=3^2
  18,45 is 27=3^3
  so the next difference should be 81=3^4.But differnce between 45,108 is not 81.
  
• 10 years agoHelpfull: Yes(1) No(0)
• 792
  diff-3,9,27,63,,243
  3,3^3,3^5 ....and 9*7=63
  63*7=441
  add-441+351=792
• 11 years agoHelpfull: Yes(0) No(6)
• the difference between the two nubers is 3 and 3 squre 3 cube and so on..
  
• 10 years agoHelpfull: Yes(0) No(3)
• The diff BTW the and is 3,32,33,34.....
• 10 years agoHelpfull: Yes(0) No(0)
• 729 is the next number in the series.Because,the difference between 2 numbers is in the sequence of 3,3^2,3^3,...
• 10 years agoHelpfull: Yes(0) No(0)
• diffrence of the cube of 3 so,
  ans is 1080
• 9 years agoHelpfull: Yes(0) No(0)
• 6-------------9 ---------------18--------------------45-------------------108-----------------351---------------------1080
  3 3^2 3^3 3^4 3^5 3^6
• 8 years agoHelpfull: Yes(0) No(0)
• 9*9*9=729
  
• 8 years agoHelpfull: Yes(0) No(0)
• difference between numbers are = 3-6-27-81-243- and next =729 plus 351 =1020 :)
• 7 years agoHelpfull: Yes(0) No(0)