(1)-3,6,1,-2,4,-1,21,2,-3,?
(2)22,19.5,21.45,33,26,15,-1,?
(3)49,39,37,33,26,15,?
(4)35,57,12,14,2,7,9,42,67,?
(5)8,6,22,26,54,58,86,90,118,?
(6)11,8,17,14,23,24,31,32,?
(7)8,16,3,27,4,8,7,19,2,0,7,?
(8)5/6,1/3,1/2,1/2,2/8,1/4,5/6,1/6,2/3,1/2,1/3,?
(9)100,98,95,90,83,?
(10)0,8,12,26,23,?
(11)18,24,5,21,8,27,17,23,4,24,30,?
(12)2,3,10,15,26,3550,?
(13)7776,625,64,9,?
(14)

• (1) (-3,6,1),(-2,4,-1),(-1,2,-3),(x , y, z)
  In each group, 1st number increases by "1" => {-3,-2,-1,x} => x=0
  In each group, 2nd number decreases by "2" => {6,4,2,y} => y=0
  In each group, 3rd number decreases by "2" => {1,-1,-3,z} => z=-5
  Ans : (0,0,-5)
  
  (3)49,39,37,33,26,15,?
  I think series might be wrong...
  40,39,37,33,26,15,x
  40 - 39 = 1
  39 - 37 = 2 [prev diff + 1]
  37 - 33 = 4 [prev diff + 2]
  33 - 26 = 7 [prev diff + 3]
  26 - 15 = 11 [prev diff + 4]
  15 - x = 16 [prev diff + 5]
  x = -1
  Ans : -1
  
  
  
  (4)(35,5,7,12),(14,2,7,9),(42,6,7,x)
  35/5 = 7
  5 + 7 = 12
  14/2 = 7
  2 + 7 = 9
  42/6 = 7
  6 + 7 = 13
  Ans : 13
  
  (5)8,6,22,26,54,58,86,90,118, x
  Divide the series into 2
  (8, 22, 54, 86, 118) ( 6, 26, 58, 90, x)
  (8*3) - 2 = 22
  (8*7) - 2 = 54
  (8*11) - 2 = 86
  (8*15) - 2 = 118
  
  (6*4) + 2 = 26
  (6*9) + 4 = 58
  (6*14) + 6 = 90
  (6*19) + 8 = 122
  Ans : 122
  
  (6)11,8,17,14,23,24,31,32,x
  Alternate prime no's - 5
  11
  13 - 5 = 8
  17
  19 - 5 = 14
  23
  29 - 5 = 24
  31
  37 - 5 = 2
  41
  Ans : 41
  
  (7) (8,16,3,27),(4,8,7,19),(2,0,7,x)
  8 + 16 + 3 = 27
  4 + 8 + 7 = 19
  2 + 0 + 7 = 9
  Ans : 9
  
  (8)(5/6,1/3,1/2), (1/2,2/8,1/4),(5/6,1/6,2/3),(1/2,1/3, x)
  5/6 - 1/3 = 1/2
  1/2 - 2/8 = 1/4
  5/6 - 1/6 = 2/3
  1/2 - 1/3 = 1/6
  Ans : 1/6
  
  (9)100,98,95,90,83,x
  Difference of prime numbers
  100 - 98 = 2
  98 - 95 = 3
  95 - 90 = 5
  90 - 83 = 7
  83 - x = 11
  x = 72
  Ans : 72
  
  (11)(18,24,5),(21,27,8),(17,23,4),(24,30,x)
  18 + 6 = 24
  24 - 19 = 5
  Similarly 24 + 6 = 30
  30 - 19 = 11
  Ans : 11
  
  (12)2,3,10,15,26,35,50, x
  1^2 + 1 = 2
  2^2 - 1 = 3
  3^2 + 1 = 10
  4^2 - 1 = 15
  5^2 + 1 = 25
  6^2 - 1 = 35
  7^2 + 1 = 50
  8^2 - 1 = 63
  Ans : 63
  
  (13)7776,625,64,9,x
  7796 --> 6^5
  625 --> 5^4
  64 --> 4^3
  9 --> 3^2
  2 --> 2^1
  x --> 1^0 ==> 1
  Ans : 1
  
  
• 10 years agoHelpfull: Yes(40) No(5)
• (10) (0,8),(12,26),(23,x)
  8 - 0 = 8
  26 - 12 = 14 [prev diff + 6]
  x - 23 = 20 [prev diff + 6]
  x = 43
  Ans : 43
  
  
• 10 years agoHelpfull: Yes(13) No(2)
• (49,37,26),(39,23,15)
  diff in 1st group is decreasing 12,11 next 10 so answer is 16 not -1.
• 10 years agoHelpfull: Yes(3) No(4)
• 13) 7776=6^5
  625=5^4
  64=4^3
  9=3^2
  2^1=2 ans
  
• 9 years agoHelpfull: Yes(3) No(1)
• (13) 7776,625,64,9,?
  Ans: 6^5=7776
  5^4=625
  4^3=64
  3^2=9
  2^1=2
  so ans is 2
• 9 years agoHelpfull: Yes(2) No(0)
• 3)49,39,37,33,26,15
  alternate term
  49-12=37
  37-11=26
  26-10=16
  ans=16
• 9 years agoHelpfull: Yes(1) No(2)
• (12) 2,3,10,15,26,35,50,?
  (3-2)=1 (15-10)=5 (35-29)=9 (x-50)=13 so, x=63
• 9 years agoHelpfull: Yes(1) No(0)
• (10) 0+12+23=35
  8+26+x=35
  x=1
• 9 years agoHelpfull: Yes(0) No(3)
• 2.)37.5
  do 33-19.5=13.5
  33-15=18
  now 15+22.5=37.5
• 7 years agoHelpfull: Yes(0) No(0)
• Q2: 22 (19.5, 21.45 ) 33 ( 26, 15, -1) ?
  answer = 44
• 6 years agoHelpfull: Yes(0) No(0)