21. 1, 4, 9, 16, 23, 25, 36 ?

1. 1. 9

   
   
   

   2. 23

   
   
   

   3. 25

   
   
   

   4. 36

   
   
   

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1. View Hint View Answer Discuss in Forum

   Each of the given number is except 23, is perfect square
   

   Correct Option: B

   Each of the given number is except 23, is perfect square
   

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22. 6, 9, 15, 21, 24, 28, 30 ?

1. 1. 25

   
   
   

   2. 21

   
   
   

   3. 24

   
   
   

   4. 30

   
   
   

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1. View Hint View Answer Discuss in Forum

   Each of the number except 28, is a multiple of 3.

   Correct Option: A

   Each of the number except 28, is a multiple of 3.

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23. 16, 25, 36, 72, 144, 196, 225 ?

1. 1. 36

   
   
   

   2. 72

   
   
   

   3. 196

   
   
   

   4. 225

   
   
   

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1. View Hint View Answer Discuss in Forum

   Each of the number except 72, is a perfect square.

   Correct Option: B

   Each of the number except 72, is a perfect square.

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24. 10, 25, 45, 54, 60, 75, 80 ?

1. 1. 10

   
   
   

   2. 45

   
   
   

   3. 54

   
   
   

   4. 75

   
   
   

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1. View Hint View Answer Discuss in Forum

   Each of the number except 54, is a multiple of 5.
   

   Correct Option: C

   Each of the number except 54, is a multiple of 5.
   

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25. 1, 4, 9, 16, 20, 36, 49 ?

1. 1. 1

   
   
   

   2. 9

   
   
   

   3. 20

   
   
   

   4. 49

   
   
   

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1. View Hint View Answer Discuss in Forum

   The pattern is 1², 2², 3², 4², 5², 6², 7² .

   Correct Option: C

   The pattern is 1², 2², 3², 4², 5², 6², 7² .
   
   But, instead of 5², It is 20, which is to be turned out.

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