18, 24, 5, 21, 8, 27, 17, 23, 4, 24, 30

• first of all the series will be 18,24,5,21,27,8,17,23,4,24,30,?
  The solution is...
  18+6=24,24-19=5
  21+6=27,27-19=8
  17+6=23,23-19=4
  24+6=30,30-19=11
  so 11 is the next term.
• 11 years agoHelpfull: Yes(150) No(14)
• divide into 2 series
  1)18,5,8,17,4,30
  2)24,21,27,23,24,?
  see the 2nd series
  (24,21) (27,23) (24,?)
  24-21=3
  27-23=4
  thus we can say the diff btn 24 and the unknown term is 5
  hence
  24-5=19 is the next term
  
• 11 years agoHelpfull: Yes(14) No(24)
• 18+6=24 2+4-1=5
  21+6=27 2+7-1=6
  17+6=23 2+3-1=4
  24+6=30 3+0-1=2
  
• 10 years agoHelpfull: Yes(14) No(5)
• First take two series
  1st is 18,24,21,27,17,23,24,30
  take pair: 18+6=24
  21+6=27
  17+6=23
  24+6=30
  2nd series is 5,8,4,
  5+(+3)=8
  8+(-4)=4
  4+(+5)=9
  so 9 is answer
  
  
• 9 years agoHelpfull: Yes(13) No(3)
• i think this is wrong series check it once
• 11 years agoHelpfull: Yes(10) No(8)
• its so easy as
  devide the series
  18,24,5,21,27,8
  18-1=17
  24-1=23
  5-1=4
  21+3=24
  27+3=30
  therefore 8+3=11
  and the next series are as follows
  17,23,4,24,30,(ans=11)
  
• 10 years agoHelpfull: Yes(9) No(3)
• (18,24),5,(21,27),8.(17,23),4,(24,30)
  18+6=24, (2+4)-1=5
  21+6=27,(2+7)-1=8
  24+6=30,(3+0)-1=2
  So the ans should be 2.
• 9 years agoHelpfull: Yes(7) No(1)
• it follows +3 -4 +7 rule
  now apply this rule in series
  1st series 18,21,17,24
  2nd series 24,27,23,30
  3rd series 5, 8, 4 ,11
  so answer is 11
• 10 years agoHelpfull: Yes(5) No(5)
• ans is 50
  24-18=6,6-1=5
  21+8=29,29-2=27
  23-17=6,6-1*2=4
  30+24=54,54-2*2=50
  
• 11 years agoHelpfull: Yes(4) No(14)
• Actual Question is
  18,24,5,21,27,8,17,23,4,24,30,_?_
  
  18+6=24, 24-19=5
  21+6=27, 27-19=8
  17+6=23, 23-19=4
  24+6=30, 30-19= (11). Ans...!!
• 9 years agoHelpfull: Yes(4) No(0)
• Series is : 18, 24, 5, 21, 27, 8, 17, 23, 4, 24, 30, ?
  18+6=24,6-1=5
  21+6=27,6+2=8
  17+5=23,5-1=4
  24+6=30,6+2=8
  so ans is 8
• 10 years agoHelpfull: Yes(3) No(8)
• 24-18=6-1=5,
  27-21=6+2=8,
  23-17=6-2=4,
  30-24=6+1=7(Answer)
• 9 years agoHelpfull: Yes(2) No(2)
• Actual question is 18, 24, 5, 21, 27, 8, 17, 23, 4, 24, 30
  first divide the series into triplets like (18, 24, 5) ,(21, 27, 8), (17, 23, 4), (24, 30,x)
  step 1: compare 1 &2 triplets +3 added for each number
  step 2: compare 2 &3 triplets -4 subtracted for each number
  and step 3: compare 3 &4 triplets +7 added for each number so the answer is 11
• 7 years agoHelpfull: Yes(2) No(0)
• frndz...what is the correct answer?...i am totally confused
• 9 years agoHelpfull: Yes(1) No(0)
• Suppose 11 is right answer
  then what is next term, after 11.......frndz plz clear it
  
• 7 years agoHelpfull: Yes(0) No(0)