11. 125, 123, 120, 115, 108, 100, 84 ?

1. 1. 125

   
   
   

   2. 115

   
   
   

   3. 100

   
   
   

   4. 84

   
   
   

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1. View Hint View Answer Discuss in Forum

   Prime numbers 2, 3, 5, 7, 11, 13 have successively been subtracted. So, 100 is wrong. It must be (108 - 11) i.e., 97.

   Correct Option: C

   Prime numbers 2, 3, 5, 7, 11, 13 have successively been subtracted. So, 100 is wrong. It must be (108 - 11) i.e., 97.

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12. 4 - 8, 16 - 32, 64 - (...) :

1. 1. 128

   
   
   

   2. -128

   
   
   

   3. 192

   
   
   

   4. -192

   
   
   

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1. View Hint View Answer Discuss in Forum

   Each number is the preceding number multiplied by - 2. So, the required number is - 128.

   Correct Option: B

   Each number is the preceding number multiplied by - 2. So, the required number is - 128.

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13. 1, 8, 27, 64, 125, 216, (...) :

1. 1. 354

   
   
   

   2. 343

   
   
   

   3. 392

   
   
   

   4. 245

   
   
   

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1. View Hint View Answer Discuss in Forum

   Number are 1³, 2³, 3³, 4³, 5³, 6³.

   Correct Option: B

   Number are 1³, 2³, 3³, 4³, 5³, 6³.
   
   So, the missing number is 7³ = 343.

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14. 835, 734, 642, 751, 853, 981, 532 ?

1. 1. 751

   
   
   

   2. 853

   
   
   

   3. 981

   
   
   

   4. 532

   
   
   

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1. View Hint View Answer Discuss in Forum

   The difference of third and first digit is the middle one .

   Correct Option: A

   In each number except 751, the difference of third and first digit is the middle one .

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15. 22, 33, 66, 99, 121, 279, 594 ?

1. 1. 33

   
   
   

   2. 121

   
   
   

   3. 279

   
   
   

   4. 594

   
   
   

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1. View Hint View Answer Discuss in Forum

   Each number except 279 is a multiple of 11.

   Correct Option: C

   Each number except 279 is a multiple of 11.

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