Complete the series:5, 20, 24, 6, 2, 8, ?

a)32
b)12

• The series is *4, +4, /4, -4, *4,....
  That is 5*4 = 20, 20+4 = 24, 24/4 = 6, 6-4 = 2, and again 2*4 = 8 constructing the series 20,24,6,2,8,...so obviously the next operation will be +4, so 8+4 = 12
• 11 years agoHelpfull: Yes(10) No(2)
• Option B 12
  5*4=20
  20+4=24
  24/4=6
  6/3=2
  2*4=8
  8+4=12
• 13 years agoHelpfull: Yes(8) No(9)
• aruna ur ans rite but der is slight change :(6/3=2 instead of 6/3=2)
  Option B 12
  5*4=20
  20+4=24
  24/4=6
  6-4=2
  2*4=8
  8+4=12
• 11 years agoHelpfull: Yes(2) No(2)
• 12-4=8
  8/4=2
  2+4=6
  6*4=24
  24-4=20
  20/4=5
  
• 9 years agoHelpfull: Yes(0) No(0)
• 12
  5*4=20
  6*4=24
  2*4=8
  3*4=12
• 9 years agoHelpfull: Yes(0) No(0)
• Option (B) 12
  Because it derives a pattern with 4 which is *, + , /, -,
  which is :
  5*4=20
  20+4=24
  24/4=6
  6/3=2
  2*4=8
  8+4=12
  
  ans is 12
• 9 years agoHelpfull: Yes(0) No(0)
• 5,5*4,20+4,
  6*4=24
  2*4=8,8+4=12
• 8 years agoHelpfull: Yes(0) No(0)
• 12
  5*4=20
  20+4=24
  24/4=6
  6-4=2
  again sequence repeats
  2*4=8
  8+4=12
• 4 years agoHelpfull: Yes(0) No(0)