18,20,22,20,28,20,?.

• here again see only 1st,3rd,5th
  biz 18 22 28 ...?
  18 + 4 = 22
  22 + 6 = 28
  28 + 8 = 36 ans
• 12 years agoHelpfull: Yes(44) No(5)
• series starts with 18
  consider 20,22,20 are repeated in the series
  18+10=28,
  then it continues with 20 so after 20 it would be 22,20,then 38
  ans:22 and series 18,20,22,20,28,20,22,20,38,....
• 10 years agoHelpfull: Yes(12) No(3)
• remove 2o then 18,22,28,-
  then (18-22)=4(2*2)
  (28-22)=6(2*3)
  (28-x)=8(2*4)
  x=36
  
  
• 12 years agoHelpfull: Yes(9) No(7)
• Ans:30
  series in the form of adding +2,+4,+2,+8,+2,+12 with the first no 18 only gives solution 18,20,22,20,28,20,30...............
• 10 years agoHelpfull: Yes(0) No(2)
• alternate even positions are same so consider only odd positions
  18,22,28...increasing +4,+6,so next elements increased by +8 so ans will be 36.
• 8 years agoHelpfull: Yes(0) No(2)
• 36
  adding 4 6 and then 8 alternatively
  and leaving 20 series repeating term as it is
• 7 years agoHelpfull: Yes(0) No(1)
• 18+4=22
  22+6=28
  28+8=36
  36,20
• 6 years agoHelpfull: Yes(0) No(0)
• assume that 20,22,20 is repetitive numbers 18+10=28, 28+10=38, so the answer will be 22
  18,20,22,20,28,20,22,20,38
• 6 years agoHelpfull: Yes(0) No(0)