Find out the wrong term.
11, 5, 20, 12, 40, 26, 74, 54

A. 5 B. 20
C. 40 D. 26

• check even and odd places/alternate
  
  divide sequence in 2 parts
  11,20,38,74
  5,12,26,54
  
  11*2-2=20
  20*2-2=38
  38*2-2=74
  
  5*2+2=12
  12*2+2=26
  26*2+2=54
  
  ans: C ,40 (38 is correct)
• 9 years agoHelpfull: Yes(2) No(1)
• ans: 40
  11-5=6
  20-12=8
  38-26=12 (instead of 40 it should be 38)
  74-54=20
  
  now from result
  8-6=2
  12-8=4
  20-12=8
  
  where 2,4,8 are in form of g.p
  
• 10 years agoHelpfull: Yes(1) No(1)