11.5,17.5,35.5,89.5

• Next number is 251.5
  
  11.5 =11.5
  11.5 +(6) = 17.5
  17.5 +(6*3) = 17.5 + 18 = 35.5
  35.5 +(18*3) = 35.5 + 54 = 89.5
  89.5 +(54*3) = 89.5 + 162 = 251.5
• 12 years agoHelpfull: Yes(60) No(7)
• 11.5+6=17.5
  17.5+(6*3)=35.5
  35.5+(18*3)=89.5
  89.5+(54*3)=251.5(ans)
• 12 years agoHelpfull: Yes(8) No(2)
• 11.5* 1.5 =17.25+ 0.25=17.5
  17.5* 2 =35 + 0.50=35.5
  35.5* 2.5 =88.75+ 0.75=89.5
  89.5* 3 =268.5+ 1=269.5
• 11 years agoHelpfull: Yes(8) No(2)
• 11.5=11.5
  11.5+6*1=17.5
  17.5+6*3=35.5
  35.5+18*3=89.5
  89.5+54*3=251.5
  89.5+54*3
  89.5
  
• 12 years agoHelpfull: Yes(2) No(3)
• take two digits and subtract then multifling with 3 and second digit(17.5) then get next number(3rd)is 35.5.
  .ie 17.5-11.5=6*3+17.5=35.5
  89.5-35.5=54*3+89.5=251.5
• 12 years agoHelpfull: Yes(2) No(2)
• 11.5+6=17.5
  17.5+(6*3) = 35.5
  35.5+(18*3) = 89.5
  89.5+(54*3) = 251.5
• 9 years agoHelpfull: Yes(1) No(0)