1) 1/4, 1/4, 1/2, 3/2, 6, ?

2) 0.8, 1.8, 3.6, 3.6, 4.6, 9.2, 9.2, 10.2, ?

3) 22, 19.5, 21.45, 33, 30.5, 33.55, 44, 41.5, ?

4) 15 3/4, 16, 26, 9 1/5, 9, 19, 64 2/3, 65, 75, 30 3/8, ?

5) 3, 2, 1, 4, 5, 4, 5, 1, 0, 6, 3, ?

6) 3/2, 2 1/4, 9/4, 7/2, 12 1/4, 49/4, 4/3, 1 1/7, 16/9, ?

7) 18, 24, 5, 21, 27, 8, 17, 23, 4, 24, 30, ?

8) 100, 98, 95, 90, 83, ?

9) 1, 3, 3, 2, 8, 10, 3, 4, 12, 4, 8, ?

10) 49, 7, 98, 16, 4, 48, 9, 3, 36, 25, 5, ?

11) 9, 12, 4, 8, 12, 15, 5, 9, 3, 6, 2, 6, 6, 9, ?

12) 5/6, 1/3, 1/2, 1/2, 2/8, 1/4, 5/6, 1/6, 2/3, 1/2, 1/3, ?

13) 33, 8, 41, 21, 67, 72, 47, 119, 124, ?

14) 1/7, 3/4, 4/9, 5/6, 7/11, 7/8, ?

15) 7, 4, 6, 3, 4.5, 1.5, 2.25, -0.75, ?

• 1) 1/4,1/4,1/2,3/2,6,x
  (1/4)*1 =1/4 (Second term)
  (1/4)*2 =1/2 (Third term)
  (1/2)*3 =3/2 (Fourth term)
  (3/2)*4=6 (Fifth term)
  6*5=30 (Sixth term) Ans
  
  2) 0.8,1.8,3.6,3.6,4.6,9.2,9.2,10.2,x
  
  Grouping in threes we get
  (0.8,1.8,3.6)(3.6,4.6,9.2)(9.2,10.2,x)
  0.8+1=1.8
  1.8*2=3.6
  Third term of first group is the first term of second group
  Similarly
  3.6+1=4.6
  4.6*2=9.2
  Third term of second group is the first term of third group
  Similarly
  9.2+1=10.2
  10.2*2= 20.4(Ans)
  
  3) 22,19.5,21.45,33,30.5,33.55,44,41.5,x
  
  Grouping in threes
  (22,19.5,21.45)(33,30.5,33.55)(44,41.5,x)
  First group
  22-19.5=2.5
  22-21.45=0.55
  Second Group
  33-30.5=2.5
  33-33.55=0.55
  Third Group
  44-41.5=2.5
  x-44=0.55
  x=44+0.55=44.55 (ANS)
  
  4)15 3/4,16,26,9 1/5,9,19,64 2/3,65,75,30 3/8
  
  Grouping in threes we get
  (15 3/4,16,26)(9 1/5,9,19)(64 2/3,65,75) (30 3/8,x,y)
  
  Second term in each group is obtained after rounding off the first term in the same group
  Second term+10=Third term
  15 3/4 becomes 16
  16+10=26
  Similarly
  30 3/8 becomes 30(since the fraction 3/8 gives 0.375 which is less than 0.5)
  30+10=40 Ans=30
  
  6) 3/2,2 1/4,9/4,7/2,12 1/4,49/4,4/3,1 7/9,16/9
  3/2,9/4,9/4,7/2,49/4,49/4,4/3,16/9,16/9
  Grouping in threes
  (3/2,9/4,9/4) (7/2,49/4,49/4) (4/3,16/9,16/9) (x,y,z)
  (Numerator+4)/Denominator=first term of second group
  (3+4)/2=7/2
  similarly
  (4+4)/3=8/3 Ans
  
  7) 18,24,5,21,27,8,17,23,4,24,30,x
  Grouping in threes
  (18,24,5) (21,27,8) (17,23,4) (24,30,x)
  18+6=24
  24-5=19
  Also,
  21+6=27
  27-8=19
  similarly
  24+6=30
  30-x=19
  x=11 ANS
  
  8)100,98,95,90,83
  100-98=2
  98-95=3
  95-90=5
  90-83=7
  83-x=11(11 is the next prime number)
  x=72 (Ans)
  
  9)1,3,3,2,8,10,3,4,12,4,8,x
  Grouping in threes
  (1,3,3)(2,8,10)(3,4,12)(4,8,x)
  First group 1*3=3 (Third term)
  Second group 2+8=10 (Third term)
  Third group 3*4=12(Third term)
  Fourth Group 8+4=12 (Third term)Ans
  
  10) 49,7,98,16,4,48,9,3,36,25,5,x
  Grouping in threes
  (49,7,98) (16,4,48)(9,3,36)(25,5,x)
  
  49*2=98
  16*3=48
  9*4=36
  25*5=125 ANS
  11) (9,12,4,8)(12,15,5,9)(3,6,2,6)(6,9,X,Y)
  9+3=12/3=4+4=8
  12+3=15/3=5+4=9
  6+3=9/3=3+4=7
  Ans 3
  12) 5/6, 1/3, 1/2, 1/2, 2/8, 1/4, 5/6, 1/6, 2/3, 1/2, 1/3, ?
  Grouping in three
  (5/6 ,1/3, 1/2) (1/2,2/8,1/4) (5/6, 1/6, 2/3)(1/2,1/3,x)
  First term -second term=Third term
  1/2- 1/3= 1/6 ANS
  
  13) 33,8,41,46,21,67,72,47,119,124,x
  Grouping in threes
  (33,8,41) (46,21,67)(72,47,119)(124,x,y)
  8,21,47,x
  21-8 =13
  47-21=26
  x-47=39
  x=86 (ANS)
  14) 1/7 ,3/4, 4/9,5/6,7/11,7/8
  
  Series 1 = 1/7 , 4/9, 7/11
  
  1+3 = 4
  7+2 = 9
  4+3 = 7
  9=2 = 11
  7+3 = 10
  11+2 = 13
  10/13 ANS
  
  15)7,4,6,3,4.5,1.5,2.25,-0.75,x
  
  
  7-4 = 3
  6-3 =3
  4.5-1.5 = 3
  2.25-(-0.75) = 3
  Also,
  7,6,4.5.2.25
  
  7-1 = 6
  6-1.5 (1*1.5) = 4.5
  4.5-2.25(1.5 *1.5 ) = 2.25
  then
  
  2.25 - (2.25 * 1.5 ) = -1.125
  
  
• 9 years agoHelpfull: Yes(20) No(1)
• 5) 3,(2,1),4,(5,4),5,(1,0),6,(3,?)
  Ans:2
• 9 years agoHelpfull: Yes(14) No(0)
• 3)22, 19.5, 21.45, 33, 30.5, 33.55, 44, 41.5, ?
  22,19.5,21.45
  33,30.5,33.55
  44,41.5,45.65
• 9 years agoHelpfull: Yes(12) No(10)
• 1.1/4*1=1/4
  1/4*2=1/2
  1/2*3=3/2
  3/2*4=6
  6*5=30
• 9 years agoHelpfull: Yes(8) No(0)
• 2.1.8-0.8=1.0
  1.8*2=3.6
  1.8*2=3.6
  4.6-3.6=1.0
  4.6*2=9.2
  4.6*2=9.2
  10.2-9.2=1.0
  10.2*2=20.4
  10.2*2=20.4
• 9 years agoHelpfull: Yes(8) No(0)
• 5.3+2-1=4
  4+5-4=5
  5+1-0=6
  6+3-2=7.....
• 9 years agoHelpfull: Yes(8) No(2)
• 11) 9+3=12
  12/3=4
  4+4=8
  
  12+3=15
  15/3=5
  5+4=9
  
  
  3+3=6
  6/3=2
  2+4=6
  
  
  6+3=9
  9/3=3
  so 3 is the ans i guess.
• 9 years agoHelpfull: Yes(7) No(0)
• 4)15 3/4,16,26,9 1/5,9,19,64 2/3,65,75,30 3/8
  15+1=16,16+10=26
  9+0=9,9+10=19
  64+1=65,65+10=75
  30+0=30,30+10=40
  so,nxt terms are 30,40
• 9 years agoHelpfull: Yes(6) No(0)
• 10) 49, 7, 98, 16, 4, 48, 9, 3, 36, 25, 5, ?
  7*7=49 49*2=98
  4*4=16 16*3=48
  3*3=9 9*4=36
  5*5=25 25*5=125
• 9 years agoHelpfull: Yes(5) No(0)
• 8) 100-98=2
  98-95=3
  95-90=5
  90-83=7
  all these are prime numbers, so next prime no is 11
  so, 83-11=72
  ans 72
  
• 9 years agoHelpfull: Yes(5) No(0)
• 9)1*3=3
  2+8=10
  3*4=12
  4+8=12
  ans=12
• 9 years agoHelpfull: Yes(4) No(0)
• 3.)
  there r two series
  22 - 0.55 = 21.45
  33 + 0.55 = 33.55
  44 - 0.55 = 43.45
  
  and
  
  19.5 +11 = 30.5
  30.5 +11 = 41.5
  
  and there is a difference of 2.5 after 22,33,44
• 9 years agoHelpfull: Yes(4) No(0)
• 1)30
  2)20.4
  3)45.65
  4)3.25
  6)question mistake(i think we have to change 1 1/7 to 1 7/9 the series follows)
  then answer will be 8/3
  7)9
  8)94
  9)12
  10)125
  
• 9 years agoHelpfull: Yes(3) No(1)
• 7) (18,24,5) (17,23,4) = here one is decremented in each element
  (21,27,8) (24,30,?)= here three is incremented in each element
  so ans is 11
• 9 years agoHelpfull: Yes(3) No(1)
• 12)
  
  5/6,1/3,1/2
  1/2, 1/2, 2/8
  like this
  
  
  
  5/6 = 1/3 +1/2
  1/2 = 2/8 + 1/4
  5/6 = 1/6 +1/3
  1/2 = 1/3 +1/6
  
• 9 years agoHelpfull: Yes(3) No(0)
• answer 7)
  given series 18,24,5,21,27,8,17,23,4,24,30,?
  
  take a group of triplet
  take the corresponding difference
  e.g
  21-18 = 3
  27-24 = 3
  8-5 =3
  
  17-21 = -4
  23-24 = -4
  4-8 = -4
  
  24-17 = 7
  30-23 = 7
  ans - 4 = 7
  
  => ans = 7+4=11
  
  the missing no. is 11
• 9 years agoHelpfull: Yes(3) No(0)
• 12) 1/6
  Consider the series as
  A , B , C
  where 3rd term is given by
  A - B = C
  5/6 - 1/3 = 1/2
  1/2 - 2/8 = 1/4
  5/6 - 1/6 = 2/3
  so
  1/2 - 1/3 = 1/6
• 9 years agoHelpfull: Yes(3) No(0)
• 3) 22-2.5=19.5
  19.5+1.95=21.45
  33-2.5=30.5
  30.5+3.05=33.55
  44-2.5=41.5
  41.5-4.15=45.65
  so ans is 45.65
• 9 years agoHelpfull: Yes(3) No(0)
• 8)100-2=98
  98-3=95
  95-5=90
  90-7=83
  83-9=74
  ans=74
  
• 9 years agoHelpfull: Yes(2) No(5)
• answer for 15)
  series 7,4,6,4.5,2.25,-0.75, ?
  difference between all the pairs from starting is 3
  i,e. 7-4 = 6-3 = 4.5-1.5 = 2.25-(-0.75) = 3
  
  now take the difference of pairs starting from the 2nd number
  6-4 = 2
  4.5-3 = 1.5
  2.25-1.5 = 0.75 (equation b )
  
  so how this came,
  finding the relation of 1.5 from 2
  3-2 = 1, 1/2 = 0.5
  2-0.5 = 1.5
  
  similarly for 0.75 from 1.5
  3-1.5 = 1.5 , 1.5/2= 0.75
  1.5-0.75 = 0.75
  
  so the next difference will be,
  3-0.75 = 2.25, 2.25/2 = 1.125
  0.75-1.125 = -0.375
  
  ans - (-0.75) = -0.375 ....( applying equation b)
  ans = -0.75 - 0.375
  = -1.125
  
  so the missing no. will be -1.125
  
  
• 9 years agoHelpfull: Yes(2) No(0)
• 5) 3 2 1 4 5 4 5 1 0 6 3
  3 4 5 6
  2, 2+3=5, 5-4=1, 1+2=3
  1, 1+3=4, 4-4=0, 0+2=2
• 9 years agoHelpfull: Yes(2) No(1)
• 22, 19.5, 21.45, 33, 30.5, 33.55, 44, 41.5, ?
  -2.5 -.55 -2.5 +.55 -2.5 -.55
  so,ans is 44-.55=43.45
  
• 9 years agoHelpfull: Yes(2) No(1)
• 63/4,16,26--->16*4-1=63
  46/5,9,19---->9*5+1=46
  194/3,65,75--->65*3-1=194
  244/8,30,40--->30*8+1=244
  so ans is 30
  or
  15+1=16
  9+0=9
  64+1=65
  30+0=30
• 9 years agoHelpfull: Yes(1) No(0)
• 7)
  
  24-18 = 6
  27 - 21 = 6
  23 - 17 = 6
  30- 24 = 6
  
  and
  5 +3 =8
  8 - 4 = 4
  4 +5 =9
  so 9 should come
• 9 years agoHelpfull: Yes(1) No(1)
• 15)
  
  7-4 = 3
  6-3 =3
  4.5-1.5 = 3
  2.25-(-0.75) = 3
  
  and how
  
  7,6,4.5.2.25
  
  7-1 = 6
  6-1.5 (1*1.5) = 4.5
  4.5-2.25(1.5 *1.5 ) = 2.25
  then
  
  2.25 - (2.25 * 1.5 ) = -1.125
• 9 years agoHelpfull: Yes(1) No(0)
• question 13)
  33,8,41,46,21,67,72,47,119,124,?
  Take a group of 3 i.e.
  (33,8,41) (46,21,67) (72,47,119) (124,x,y)
  now let the 1st, 2nd and 3rd term of each group is a,b,c respectively.
  follow the pattern: a+b=c and a-b=25 (for each group)
  so 124-x=25 and 124+x=y
  so x=99 (answer) and y=124+99=223(it is not required as per the question)
• 9 years agoHelpfull: Yes(1) No(0)
• could anyone please share the english paper for IBM?
  MY email id: bhargavreddy1011@gmail.com
• 9 years agoHelpfull: Yes(0) No(0)
• 7)18,24,5
  21,27,8
  17,23,4
  24,30,_
  sol:(18+3=21,24+3=27,5+3=8)
  similarly (24-4,27-4,8-4)=17,23,4
  (17+7=24,23+7=30,4+7=11)
  so 11 is the solution
• 9 years agoHelpfull: Yes(0) No(0)
• somebody plz give solution of question 11
• 9 years agoHelpfull: Yes(0) No(0)
• http://www.m4maths.com/17622-9-12-4-8-12-15-5-9-3-6-2-6-6-9.html answer of question number 11
• 9 years agoHelpfull: Yes(0) No(0)
• 14) 1/7,3/4,4/9,5/6,7/11,7/8
  
  Series 1 = 1/7 , 4/9, 7/11
  
  1+3 = 4
  7+2 = 9
  4+3 = 7
  9=2 = 11
  7+3 = 10
  11+2 = 13
  Therefore, 10/13 is one number
  
  Series 2 = 3/4 , 5/6 , 7/8
  
  3+2 = 5
  4+2 = 6
  5+2 = 7
  6+2 = 8
  7+2 = 9
  11+2 = 13
  Therefore, 9/10 is the other number
  
  
  
• 9 years agoHelpfull: Yes(0) No(0)
• 14){1/7,4/9,7/11}
  {3/4,5/6,7/8}
  two mix serise are there so next term will be
  (7+3)/(11+2)=10/13
• 9 years agoHelpfull: Yes(0) No(0)
• 0.8+1=1.8
  1.8+1.8=3.6
  .
  .
  10.2+10.2=20.4
• 9 years agoHelpfull: Yes(0) No(1)
• 1)1/4*1=1/4
  1/4*2=1/2
  1/2*3=3/2
  3/2*4=6
  6*5=30
  so ans is 30
• 9 years agoHelpfull: Yes(0) No(0)
• can anyone can explain the 13th question plzzzzz
  
• 9 years agoHelpfull: Yes(0) No(0)
• 11) first we have to divide the series as
  (9 ,12,4,8)
  (12,15,5,9)
  (3 ,6 ,2,6)
  (6 ,9 ,x,y)
  9-1 =8
  12-9=3
  3+6 =9
• 9 years agoHelpfull: Yes(0) No(0)
• (5) 3,(2,1),4,(5,4),5,(1,0),6,(3,*) so answer is 2.
• 9 years agoHelpfull: Yes(0) No(0)
• explain question no 6 plz
• 9 years agoHelpfull: Yes(0) No(0)