Logical Reasoning

Number Series - Type 4

Find the number that fits somewhere into the middle of the series. Some of the items involve both numbers and letters

11.  Look at this series: 70, 71, 76, __, 81, 86, 70, 91, ... What number should fill the blank?

A. 70
B. 71
C. 80
D. 96
12.  Look at this series: 72, 76, 73, 77, 74, __, 75, ... What number should fill the blank?

A. 70
B. 71
C. 75
D. 78
13.  Look at this series: 83, 73, 93, 63, __, 93, 43, ... What number should fill the blank?

A. 33
B. 53
C. 73
D. 93
14.  Look at this series: (1/9), (1/3), 1, ____ , 9, ... What number should fill the blank?

A. (2/3)
B. 3
C. 6
D. 27
15.  Look at this series: 15, __, 27, 27, 39, 39, ... What number should fill the blank?

A. 51
B. 39
C. 23
D. 15