# Logical Reasoning - Number Series - Discussion

Discussion Forum : Number Series - Type 1 (Q.No. 2)
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

2.
Look at this series: 7, 10, 8, 11, 9, 12, ... What number should come next?
7
10
12
13
Explanation:
This is a simple alternating addition and subtraction series. In the first pattern, 3 is added; in the second, 2 is subtracted.
Discussion:
82 comments Page 1 of 9.

Praveen s said:   3 weeks ago
7, 10, 8, 11, 9, 12.
7 + 1 = 8
8 + 1 = 9
9 + 1 = 10.
(8)

Tigist said:   4 weeks ago
Thanks all.
(3)

Anthony Vishal said:   1 month ago
The explanation could be;.

7+3 =10 and 7+1 = 8.
We get 7, 10, 8.
(1)

Ganeshbabu said:   1 month ago
7 + 3 = 10,
8 + 3 = 11,
9 + 3 = 12,
10 + 3 = 13.
(3)

Nivetha said:   1 month ago
Yes, the right answer is option:B.

7 + 3 = 10.
10 - 2 = 8.
8 + 3 = 11.
11 - 2 = 9.
9 + 3 = 12.
12 - 2 = 10.
(6)

Mahananda bharali said:   2 months ago
(3)

Varsha Timilsina said:   2 months ago
I think 10 is the right answer.
(4)

Rupjyoti said:   2 months ago
Yes, 10 is the right answer.
(4)

Meghana said:   5 months ago
Good explanation. Thanks.
(9)

Bharti jaware said:   6 months ago
Agree, the right answer is 10.
(18)