Q. What is the missing number of the following sequence
3 8 6 14 ? 20

• ans 9
  8=3*2+2
  14=6*2+2
  so 20=9*2+2
• 10 years agoHelpfull: Yes(79) No(3)
• here two series first 3,6,9
  second 8,14,20
  in the first the difference is 3
  and in the second the difference is 6
• 10 years agoHelpfull: Yes(11) No(0)
• 9 will be the answer since there are two series in it (3,6,?)
  and (6,14,20)
• 10 years agoHelpfull: Yes(8) No(0)
• ans 9
  3*2+2
  6*2+2
  so,9*2+2
• 10 years agoHelpfull: Yes(1) No(0)
• series are 8 14 20 and 3 6 ?
  therefore the ans is 9
• 10 years agoHelpfull: Yes(1) No(0)
• 1*3=3
  3*2+2=8
  6=1*6(consider multiple of 3 as 3*2=6)
  6*2+2=14
  3*3=9(considering multiple of 3 as 3*3=9)
  9*2+2=20
  this is the pattern
• 10 years agoHelpfull: Yes(1) No(0)
• 9 will b d ans..there r 2 series..
  (3,6,- ,multiplication of 3) & (8,14,20.., add 6 for d next term)
• 10 years agoHelpfull: Yes(1) No(0)
• there are 2 series... 3, 6, ? and 8,14,20
  there is a difference of 3 in 1st group and difference of 6 in 2nd group.
  So, accordingly 6+3 = 9
  ans. 9
• 10 years agoHelpfull: Yes(0) No(0)
• answer=9
  since first series=3,6,9 and second 8,14,20
• 10 years agoHelpfull: Yes(0) No(1)
• 9 , as there is common difference of 3 in the odd places and common difference of 6 in even places
• 10 years agoHelpfull: Yes(0) No(0)
• There are two series:
  i) 3 , 6 , ?
  ii)8 , 14 , 20 its an AP with c.d.=6
  now it means that (i) is also an AP with c.d. = 3.
  Hence answer = 9
• 10 years agoHelpfull: Yes(0) No(0)
• CHECK IT OUT EVEN PLACES WHERE
  14-8=20-14=6
  SIMILARLY
  AT ODD PLACES
  6-3=3
  HENCE; X-6=3
  THIS GIVES; X=9.
  
• 10 years agoHelpfull: Yes(0) No(0)
• what about this?
  3*2+2=8
  3*3-3=6
  3*4+2=14
  3*5-3=12
  3*6+2=20
• 10 years agoHelpfull: Yes(0) No(2)
• 9
  because in every odd step is incremented by +3
  and in even step incremented by +6
• 10 years agoHelpfull: Yes(0) No(0)
• 3*2=6 and 6 is 2 less than 8.
  6*2=12 and 12 is 2 less than 14.
• 10 years agoHelpfull: Yes(0) No(0)
• ans 9,
  3*2=6,
  3*3=9
  8+6=14
  14+6=20
  
• 9 years agoHelpfull: Yes(0) No(0)
• ans is 9 bcz there are two series...first on 3,6,? and second is 8,14,20.so in second series the difference in every number 6 and first series in difference is 3.
  so in the first series,the number is 9
• 9 years agoHelpfull: Yes(0) No(0)
• this is two series
  3 6 9
  8 14 20
  answer is .. 9
• 9 years agoHelpfull: Yes(0) No(0)
• 9
  answer
  
• 9 years agoHelpfull: Yes(0) No(0)
• 3+3=6 8+6=14 14+6=20
  finally 6+3=9
  its one answer and other is 3*2=6
  6*2=12
  it may be depends on options u can select answer
  
• 9 years agoHelpfull: Yes(0) No(0)
• we can see the series...
  3,6,9,12......and
  8,14,20,24.....etc
  so 9 is the correct Ans
  
• 9 years agoHelpfull: Yes(0) No(0)
• 9 will be the missin no. as 3,6,9 in ap.8,14,20 are also in ap.
• 9 years agoHelpfull: Yes(0) No(0)
• because here two sereis is working so,
  3,6,9 ....
  and another is 8,14,20......
  so ans is 9
• 9 years agoHelpfull: Yes(0) No(0)
• 6-3=3
  9-3=3
  
  and 8+6=14
  14+6=20
  
• 8 years agoHelpfull: Yes(0) No(0)
• 9 is the right ans
• 8 years agoHelpfull: Yes(0) No(0)
• 9,by multi by 3*3
• 8 years agoHelpfull: Yes(0) No(1)
• 9
  bcoz
  
  8+6=14
  8+6=20
  3+3=6
  6+3=9
• 7 years agoHelpfull: Yes(0) No(0)
• 3+5=8
  8-2=6
  6+8=14
  14-5=9
  9+11=20
• 7 years agoHelpfull: Yes(0) No(0)
• 3,6,9 this is first series
  8,14,20 this is another series so ans will be 9
• 7 years agoHelpfull: Yes(0) No(0)
• 3 8 6 14 ? 20
  =first place 3 _ 6 _ ? _
  =Second place 8 _ 14 _ 20 _
  see at second place 8x2-2 = 14 than 8x3-4 = 20 this is the second place order
  according to first place order it simply 3x2 = 6 and 3x3 = 9 than 3x4 = 12
  so answer is 9
• 7 years agoHelpfull: Yes(0) No(0)
• 9 as it is a mixed series 3 6 9 and 8 14 20
• 7 years agoHelpfull: Yes(0) No(0)
• answer is 12
• 6 years agoHelpfull: Yes(0) No(0)