11. 48, 23, ?, 4.25, 1.125 ?

1. 1. 10.5

   
   
   

   2. 10

   
   
   

   3. 2.5

   
   
   

   4. 11

   
   
   

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1. View Hint View Answer Discuss in Forum

   Series pattern = (Previous element/2) - 1

   Correct Option: A

   Series pattern = (Previous element/2) - 1
   Missing term = 23/2 - 1 = 10.5

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12. 3, 5, 9, 17, 33, 65, ?

1. 1. 129

   
   
   

   2. 128

   
   
   

   3. 126

   
   
   

   4. 132

   
   
   

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1. View Hint View Answer Discuss in Forum

   Series pattern
   (2 x Previous element) - 1

   Correct Option: A

   Series pattern
   (2 x Previous element) - 1
   ∴ Missing term = (2 x 65) - 1 = 130 - 1 = 129

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13. 12, 15, 21, 30, 42, 57, ?

1. 1. 59

   
   
   

   2. 63

   
   
   

   3. 65

   
   
   

   4. 75

   
   
   

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1. View Hint View Answer Discuss in Forum

   Series pattern
   +3, +6, +9, +12, +15, +18

   Correct Option: D

   Series pattern
   +3, +6, +9, +12, +15, +18
   ∴ Missing term = 57 + 18 = 75

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14. ...., 9, 25, 49, 81, 121 ?

1. 1. 5

   
   
   

   2. 1

   
   
   

   3. 4

   
   
   

   4. 3

   
   
   

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1. View Hint View Answer Discuss in Forum

   Series pattern
   1², 3², 5², 7², 9², 11²

   Correct Option: B

   Series pattern
   1², 3², 5², 7², 9², 11²
   ∴ Missing term = 1² = 1

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15. 4, 12, 36, ?, 324, 972

1. 1. 108

   
   
   

   2. 125

   
   
   

   3. 215

   
   
   

   4. 312

   
   
   

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1. View Hint View Answer Discuss in Forum

   Series pattern
   Every next element = 3 x previous element
   

   Correct Option: A

   Series pattern
   Every next element = 3 x previous element
   ∴ Missing term = 3 x 36 = 108

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