6. 12, 15, 36, ?, 480, 2415, 14508

1. 1. 115

   
   
   

   2. 109

   
   
   

   3. 117

   
   
   

   4. 121

   
   
   

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1. View Hint View Answer Discuss in Forum

   Series pattern
   12 x 1 + 3 x 1 = 15
   15 x 2 + 3 x 2 = 36
   36 x 3 + 3 x 3 = 117
   Should come in place of ?
   117 x 4 + 3 x 4 = 480

   Correct Option: C

   Series pattern
   12 x 1 + 3 x 1 = 15
   15 x 2 + 3 x 2 = 36
   36 x 3 + 3 x 3 = 117
   Should come in place of ?
   117 x 4 + 3 x 4 = 480
   480 x 5 + 3 x 5 = 2415
   2415 x 6 + 3 x 6 =14508

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7. 1220, 244, ....., 9.76, 1.952, ?

1. 1. 48.8

   
   
   

   2. 49.2

   
   
   

   3. 47

   
   
   

   4. 8

   
   
   

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1. View Hint View Answer Discuss in Forum

   Series pattern
   Previous number / 5

   Correct Option: A

   Series pattern
   Previous number/5
   ∴ Missing term = 244/5 = 48.8

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8. 2, 15, 41, 80,132, ?

1. 1. 197

   
   
   

   2. 150

   
   
   

   3. 178

   
   
   

   4. 180

   
   
   

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1. View Hint View Answer Discuss in Forum

   Series pattern
   + 13, + 26, + 39, + 52, + 65
   

   Correct Option: A

   Series pattern
   + 13, + 26, + 39, + 52, + 65
   ∴ Missing term = 132 + 65 = 197

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9. 1, 9, 25, 49, 81, ?

1. 1. 90

   
   
   

   2. 135

   
   
   

   3. 121

   
   
   

   4. 125

   
   
   

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1. View Hint View Answer Discuss in Forum

   1², 3², 5², 7², 9², 11²
   
   

   Correct Option: A

   Series pattern
   1², 3², 5², 7², 9², 11²
   So missing term = 11² = 121

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10. Find out the next term in the series 7, 11, 13, 17, 19, ...

1. 1. 21

   
   
   

   2. 23

   
   
   

   3. 27

   
   
   

   4. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   Given series is a consecutive prime number series.

   Correct Option: B

   Given series is a consecutive prime number series. Therefore, the next term will be 23.

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