LOGICAL AND CRITICAL REASONING PROBLEMS:Number Series

Part 5
21. 84 78 72 66 60 54 48
a. 44 34
b. 42 36
c. 42 32
d. 40 34
e. 38 32
22. 3 8 13 18 23 28 33
a. 39 44
b. 38 44
c. 38 43
d. 37 42
e. 33 38
23. 20 20 17 17 14 14 11
a. 8 8
b. 11 11
c. 11 14
d. 8 9
e. 11 8
24. 18 21 25 18 29 33 18
a. 43 18
b. 41 44
c. 37 18
d. 37 41
e. 38 41
25. 9 11 33 13 15 33 17
a. 19 33
b. 33 35
c. 33 19
d. 15 33
e. 19 21
Answers:


21. b. In this simple subtraction series, each number
is 6 less than the previous number.
22. c. In this simple addition series, each number
is 5 greater than the previous number.
23. e. This is a simple subtraction with repetition
series. It begins with 20, which is repeated,
then 3 is subtracted, resulting in 17, which
is repeated, and so on.
24. d. This is a simple addition series with a random
number, 18, interpolated as every third
number. In the series, 4 is added to each
number except 18, to arrive at the next
number.
25. a. In this alternating repetition series, a random
number, 33, is interpolated every third
number into a simple addition series, in
which each number increases by 2.
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