1)1 ,3 ,1 ,2.5 ,5 ,1 ,4 ,5 ,4 ,8 ,7
2)41.45 ,41.5 ,42 ,18.23 ,18.2 ,18
3)11 ,8 ,17 ,14 ,23 ,24 ,31 ,32
4)5, 1, 2, 8, 8, 1, 0, 9, 9, 2, 3
5) 5, 1, 2, 8, 1, 0, 9, 2, 3, 14, 1, 3
6)6, 3, 3, 9, 12, 5, 7, 35, 8, 6, 2
7)4, 2, 5, 9, 5, 11, 13, 7, 16, 17, 9
8). 0, 8, 12, 26, 23
9)18, 24, 5, 21, 8, 27, 17, 23, 4, 24, 30

• 1)1 ,3 ,1 ,2.5 ,5 ,1 ,4 ,5 ,4 ,8 ,7, x
  1 + 3 + 1 = 5 => 5/2 = 2.5
  5 + 1 + 4 = 10 => 10/2 = 5
  4 + 8 + 7 = 19 => 19/2 = 9.5
  Ans : 9.5
  
  3)11 ,8 ,17 ,14 ,23 ,24 ,31 ,32
  Alternate prime nos - 5
  11
  13 - 5 = 8
  17
  19 - 5 = 14
  23
  29 - 5 = 24
  31
  37 - 5 = 32
  41 [Next prime no. after 37 is 41]
  Ans : 41
  
  4) (5, 1, 2, 8), (8, 1, 0, 9), (9, 2, 3, x)
  5 + 1 + 2 = 8
  8 + 1 + 0 = 9
  9 + 2 + 3 = 14
  Ans : 14
  
  5) 5, 1, 2, 8, 1, 0, 9, 2, 3, 14, 1, 3, x
  5 + 1 + 2 = 8
  8 + 1 + 0 = 9
  9 + 2 + 3 = 14
  14 + 1 + 3 = 18
  Ans : 18
  
  6) (6, 3, 3, 9), (12, 5, 7, 35), (8, 6, 2, x)
  6 - 3 = 3
  3 * 3 = 9
  12 - 5 = 7
  7 * 5 = 35
  8 - 6 = 2
  2 * 6 = 12
  Ans : 12
  
  7) (4, 2, 5), (9, 5, 11), (13, 7, 16), (17, 9, x)
  Here difference between 1st nd 3rd no. increases by 1
  5 - 4 = 1
  11 - 9 = 2
  16 - 13 = 3
  x - 17 = 4
  x = 21
  Ans : 21
  
  8) 0, 8, 12, 26, 23, x
  Addition of alternate nos is 35..
  0 + 12 + 23 = 35
  Similarly 8 + 26 + x = 35
  x = 1
  Ans : 1
  9) Wrong series.It should be (18, 24, 5), (21, 27, 8), (17, 23, 4),(24, 30, x)
  18 + 6 = 24
  24 - 19 = 5
  21 + 6 = 27
  27 - 19 = 8
  17 + 6 = 23
  23 - 19 = 4
  24 + 6 = 30
  30 - 19 = 11
  Ans : 11
• 10 years agoHelpfull: Yes(70) No(4)
• 2) 73.09 is missing from question ??
• 10 years agoHelpfull: Yes(4) No(4)
• 3) 41 as {11,13,17,19,23,29,31,37,41 ;; 11,13-5=8,17,19-5=14, 23,29-5=24,31,37-5=32,41}
  
• 10 years agoHelpfull: Yes(4) No(4)
• 2)41.45=14 18.23=14 9.32=14
  41.5=10 18.2=11 9.3=12
  42=6 18=9
• 10 years agoHelpfull: Yes(4) No(2)
• 7) 21
  
  (4,2,5),(9,5,11),(13,7,16),(17,9,21)
  
  (4+2)-2/2=5
  (9+5)-(5+1)/2=11
  (13+7)-(7+1)/2=16
  (17+9)-(9+1)/2=21
  --------------------------------------
  
  6)12
  
  In groups of four
  => (6,3,3,9),(12,5,7,35),(8,6,2,12)
  
  In each braces,
  first term=sum of middle two.
  Last term =product of middle two.
  -------------------------------------
  4) 14
  Grouping in fours
  => (5,1,2,8),(8,1,0,9),(9,2,3,14)
  
  Last term of each group = 1st term in next group
  Last term = sum of first three
  
  So next term = (9+2+3)=14
  ------------------------------------
  5) 18
  (5+1+2)=8
  (8+1+0)=9
  (9+2+3)=14
  (14+1+3)=18
  
  
  
• 10 years agoHelpfull: Yes(2) No(1)
• 9) 18, 24, 5, 21, 8, 27, 17, 23, 4, 24, 30
  
  24-18= 6
  6-1=5 decrement of 1
  21-8=13*2+1=27 multiply by 2 and increment of 1
  23-17=6
  6-2=4 decrement of 2
  30-24=6*2+2= 14 multifly by 2 and increment of 2
  Ans. 14
  
  
• 10 years agoHelpfull: Yes(2) No(1)
• 1) 9.5 is the answer as (1+3+1)=5/2=2.5;; 5+1+4=10/2=5;; 4+8+7=19 19/2=9.5 )
• 10 years agoHelpfull: Yes(1) No(2)
• 4.5+1+2=8
  8+1+0=9
  9+2+3=14
  14+1+3=18
  
• 10 years agoHelpfull: Yes(1) No(2)
• 1)1+3+1=5, 5/2=2.5
  5+1+4=10, 10/2=5
  4+8+7=19, 19/2=9.5
• 10 years agoHelpfull: Yes(1) No(0)
• excuse me everyone.. please see my logic for 7th question and tel what is wrong in my view.
  Divide the given series into 3 blocks:
  (4,2,5,9), (5,11,13,7), (16,17,9,?)
  
  now (4,2,5,9)= 5+4-2=9;
  (5,11,13,7)13+5-11=7
  similarly : (16,17,9,?) 16+9-17= 8
  
• 9 years agoHelpfull: Yes(1) No(2)
• 2) series no 2 is incomplete...
  it should be 41.45,41.50,42,18.23,18.2,18,73.09
  so ans is .... 41.45 round off 41.5
  41.5 round off 42
  18.23 round off 18.2
  18.2 round off 18
  73.09 round off 73.1
  so ans is 73.1
• 9 years agoHelpfull: Yes(1) No(0)
• 1,3,1,2.5,5,1,4,5,4,8,7
  1+3+1/2=2.5
  5+1+4/2=5
  4+8+7/2=19/2=9.5
• 10 years agoHelpfull: Yes(0) No(0)
• 2)
  41.5-41.45=0.05
  42-41.5=.5
  18.23-18.2=0.03
  18.2-18=.2
  17.09-x=0.01
  x=17.08 is the correct answer
• 7 years agoHelpfull: Yes(0) No(1)