Table of Content

Logical Reasoning : Add Subtract Series (Multiple Choice Questions)


Question 1
10, 20, 10, 20, 10, 20, ...
A
20
B
30
C
10
D
40
Question 1 Explanation: 
In this simple alternating addition and subtraction series; 10 is added, then 10 is subtracted, and so on.
Question 2
101, 10, 103, 10, 105, 10, ...
A
111
B
109
C
106
D
107
Question 2 Explanation: 
In this alternating repetition series, the random number 10 is interpolated every other number into an simple addition series that increases by 2, beginning with the number 101.
Question 3
91, 10, 81, 10, 71, 10, ...
A
10
B
81
C
71
D
61
Question 3 Explanation: 
In this alternating repetition series, the random number 10 is interpolated every other number into an simple subtraction series that decreases by 10, beginning with the number 91.
Question 4
119.45, 118.95, 118.45, 117.95, ...
A
117.45
B
116.95
C
117.95
D
116.45
Question 4 Explanation: 
This is simple subtraction series in which 0.50 is subtracted from the number and so on
Question 5
20, 41, 62, 83, ...
A
101
B
104
C
109
D
111
Question 5 Explanation: 
This is simple addition series in which 21 is added to the number and so on
There are 5 questions to complete.