# 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?
22
24
25
26
Explanation:
In this simple alternating subtraction and addition series; 1 is subtracted, then 2 is added, and so on.
Discussion:
39 comments Page 1 of 4.

Janhavi Landge said:   2 months ago
The simple alternating subtraction and addition series;

1 is subtracted then 2 is added
22 - 1 = 21,
21 + 2 = 23,
23 - 1 = 22,
22 + 2 = 24,
24 - 1 = 23,
23 + 2 = 25.
(5)

Shankar said:   4 months ago
I am understanding it now easily. Thanks all for explaining.
(4)

Monalisha Satapathy said:   4 months ago
Agree, 25 is the correct answer.
(1)

Komal Yadav said:   5 months ago
Yes, the answer will be 25.
(3)

Rohit Singh said:   6 months ago
Yes, Option C is the correct answer.
(2)

PRAMOD TADINGI said:   8 months ago
22-1= 21+2 = 23
23-1= 22+2 = 25.

In this number series, 1 has been subtracted with first given number, then again 2 has been added with (subtracted) obtained number.

So, the right answer will be 25.
(5)

Kishor said:   1 year ago
(9)

Shrikath kori said:   2 years ago
22-1=21,
21+2=23,
23-1=22,
22+2=24,
24-1=23,
23+2=25.
(42)

Kavya said:   2 years ago
The logic of the Series is -1, +2 so the answer is 25.
(19)

Shigella said:   3 years ago
Thanks everyone for explaining the answer.
(6)