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1. 
Fill in the missing number in this mathematical sequence (1,5, ___, 625)
A.
125
B.
150
C.
100
D.
250
2. 
Fill in the missing number in this mathematical sequence (3, 9, 27, ___,)
A.
79
B.
75
C.
81
D.
90
3. 
Fill in the missing number in this mathematical sequence (2, 4 , ___, 256)
A.
12
B.
16
C.
19
D.
36
4. 
Fill in the missing number in this mathematical sequence (1/2, 1/4, 1/8,___)
A.
1/2
B.
1/4
C.
1/6
D.
1/10
E.
None of the above
5. 
Fill in the missing number in this mathematical sequence (10, 60,___,___)
A.
360
B.
300
C.
2160
D.
2560