Logical Reasoning - Number Series - Discussion
Discussion Forum : Number Series - Type 1 (Q.No. 4)
Directions to Solve
In each series, look for the degree and direction of change between the numbers. In other words, do the numbers increase or decrease, and by how much
4.
Look at this series: 22, 21, 23, 22, 24, 23, ... What number should come next?
Answer: Option
Explanation:
In this simple alternating subtraction and addition series; 1 is subtracted, then 2 is added, and so on.
Discussion:
46 comments Page 3 of 5.
Santhikannan said:
1 decade ago
22-1=21
21+2=23
23-1=22
22+2=24
24-1=23
23+2=25
(Therefor 23+2=25)
21+2=23
23-1=22
22+2=24
24-1=23
23+2=25
(Therefor 23+2=25)
Aaj said:
1 decade ago
Why not 22? 22 21 23, 22 24 23, 22 27 23 can also happen right?
(1)
Siraj Dal said:
9 years ago
There is a 2 no.of sequence.
22, 21
23, 22
24, 23
?(25), 24
22, 21
23, 22
24, 23
?(25), 24
(1)
Shankar said:
1 year ago
I am understanding it now easily. Thanks all for explaining.
(4)
Kavi said:
8 years ago
22-1=21
23-1=22
24-1=23
25-1=24
So it comes as 21,22,23,24.
23-1=22
24-1=23
25-1=24
So it comes as 21,22,23,24.
(1)
Jhansi said:
9 years ago
Logic of this problem is alternate addition to the numbers.
(1)
Shrikath kori said:
3 years ago
22-1=21,
21+2=23,
23-1=22,
22+2=24,
24-1=23,
23+2=25.
21+2=23,
23-1=22,
22+2=24,
24-1=23,
23+2=25.
(42)
Satrujit said:
1 decade ago
-1,+2,-1,+2,-1,+2....So we can easily get the no is 25.
Kavya said:
3 years ago
The logic of the Series is -1, +2 so the answer is 25.
(20)
Sudhansu said:
9 years ago
Series of -1 then +2, therefore the answer is 25.
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