# Aptitude Questions (Number Series) for AAO/SO and Upcoming Exams

Aptitude Questions (Number Series) for Upcoming AAO/SO Exams Set-27:
Dear Readers, Important Practice Aptitude Questions for Upcoming AAO/SO Exams was given here with Solutions. Aspirants those who are preparing for the examination can use this.

Directions (Q 01-10): What should come in place of questions mark (?) in the following number series?

1).7, 35, 105, 525, 1575, 7875, ?
a)   39375
b)   23625
c)   11815
d)   15750
e)   None of these

2).0, 5, 24, 75, 152, ?
a)   153
b)   304
c)   308
d)   312
e)   None of these

3).17, 19, 21, 22, 25, 25, 29, 28, ?
a)   31
b)   32
c)   33
d)   34
e)   None of these

4).16, 48, 24, 72, 36, 108, ?
a)   148
b)   196
c)   216
d)   224
e)   None of these

5).2/31, 5/17, 12.5/23, 31.25/19, 78.125/15, ?/11.
a)   156.25
b)   156.3125
c)   234.375
d)   312.5
e)   None of these

6).11, 13, 17, 19, 23, 29, 31, 37, ?
a)   47
b)   43
c)   41
d)   39
e)   None of these

7).165, 195, 255, 285, 345, ?
a)   375
b)   420
c)   435
d)   390
e)   None of these

8).7, 26, 63, 124, 215, 342, ?
a)   481
b)   511
c)   391
d)   421
e)   451

9).2, 4, 12, 48, 240, ?
a)   1920
b)   960
c)   1080
d)   1440
e)   None of these

10).8, 7, 11, 12, 14, 17, 17, 22, ?
a)   20
b)   22
c)   24
d)   27
e)   None of these
1). b) 2). a) 3). c) 4). e) 5). e) 6). c) 7). c) 8). b) 9). d) 10). a)

Solutions:

6).All are Prime Numbers