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:
111 comments Page 11 of 12.

Srimathi said:   10 years ago
It's a very simple.

7, 10, 8, 11, 9, 12, ...
Divide in to two parts.

1st -> 7 8 9.
2nd -> 10 11 12.

So the next number would be 10.

Navadurga said:   10 years ago
Here,
7 + 3 = 10,
10 - 2 = 8,
8 + 3 = 11,
11 - 2 = 9,
9 + 3 = 12,
12 - 2 = 10 according to this B is correct answer.

Jagabandhu jena said:   10 years ago
Yes, 10 is right answer.

Jada dalei said:   9 years ago
Nice solution, Thank you all.

Ajit singh said:   9 years ago
1th line : 7.8.9.
2th line 10.11.12.

Ans : 10.

Sumeet Kumar said:   9 years ago
Thanks for sharing good efforts.

Madhavi said:   8 years ago
Nice explanation. Thanks.

Srisai.putta said:   8 years ago
Just add & subtract the digits given in series 7, 10, 8, 11, 9, 12.

Ans:7+3=10, 10-2=8, 8+3=11, 11-2=9, 9+3=12, 12-2=10 :. Next coming number in the given series is 10.

Vineesh said:   7 years ago
Nice explanation, thanks all.

Divya said:   6 years ago
Good explanation. Thanks all.


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