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IQ Tests in Logical Thinking : Number Sequences I


What number comes in the blank in each sequence below?

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Fill in the blanks

Your Performance  

1.

2.5, 3.75, _______, 8.4375, 12.65625
 
Hint      

2.

243, 162, 108, 72, _______, 32
 
Hint      

3.

1/24, _______, 7/18, 10/15, 13/12, 16/9
 
Hint      

4.

8, 27, 64, _______, 216, 343
 
Hint      

5.

500, 475, 425, 350, 250, _______
 
Hint      

6.

213, 426, _______, 852, 1065, 1278
 
Hint      

7.

144, 121, 100, _______, 64, 49
 
Hint      


 
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