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?
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:
111 comments Page 10 of 12.
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.
7 + 3 = 10,
10 - 2 = 8,
8 + 3 = 11,
11 - 2 = 9,
Then,
12 - 2 = 10.
Divya said:
10 years ago
Thank you so much for giving a various explanation.
Mohd moin ansari said:
10 years ago
As per the logic, 12 - 2 = 10.
John Taniang said:
10 years ago
Two series 7, 8, 9 and 10, 11, 12.
So 10 is the answer for the first series.
So 10 is the answer for the first series.
M.RAGHRAM PGDM 1 said:
10 years ago
The logic is, Take difference 3 and add 2 alternatively.
Aditya vamsi said:
10 years 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.
10, 11, 12 next is 13.
So, the answer 10 is correct.
Ayush kumar said:
10 years ago
If we see the series, we can see that alternate digits are incorrect sequence 5.
7, 8, 9 then 10.
10, 11, 12.
7, 8, 9 then 10.
10, 11, 12.
Simmi said:
10 years ago
7 + 1 = 8,
10 + 1 = 11,
8 + 1 = 9,
11 + 1 = 12,
9 + 1 = 10. Add 1 alternatively.
10 + 1 = 11,
8 + 1 = 9,
11 + 1 = 12,
9 + 1 = 10. Add 1 alternatively.
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