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
Answer: Option
Explanation:
This is a simple alternating addition and subtraction series. In the first pattern, 3 is added; in the second, 2 is subtracted.
Discussion:
112 comments Page 10 of 12.

Rohan kumbhar said:   1 decade ago
Very simple. First 3 is increased and second 2 is decrease.

Santosh said:   1 decade ago
Answer is 10.

Deepshikha said:   1 decade ago
Its simple 3 add in first-time subt. 2 in second time.

7 + 3 = 10,

10 - 2 = 8,

8 + 3 = 11,

11 - 2 = 9,

Then,

12 - 2 = 10.

Divya said:   1 decade ago
Thank you so much for giving a various explanation.

Mohd moin ansari said:   1 decade ago
As per the logic, 12 - 2 = 10.

John Taniang said:   1 decade ago
Two series 7, 8, 9 and 10, 11, 12.

So 10 is the answer for the first series.

M.RAGHRAM PGDM 1 said:   1 decade ago
The logic is, Take difference 3 and add 2 alternatively.

Aditya vamsi said:   1 decade ago
Just we have to use the jumbling system among the number in ascending order.

Vinay said:   10 years ago
Thank you so much for giving a solution with various explanation.

KrishnaRathod said:   10 years ago
7, 8, 9, and next 10.
10, 11, 12 next is 13.

So, the answer 10 is correct.


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