Logical Reasoning - Number Series - Discussion

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

Number Series

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

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:

105 comments Page 10 of 11.

Aditya vamsi said: 9 years ago

Just we have to use the jumbling system among the number in ascending order.

Vinay said: 9 years ago

Thank you so much for giving a solution with various explanation.

KrishnaRathod said: 9 years ago

7, 8, 9, and next 10.
10, 11, 12 next is 13.

So, the answer 10 is correct.

Ayush kumar said: 9 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.

Simmi said: 9 years ago

7 + 1 = 8,
10 + 1 = 11,
8 + 1 = 9,
11 + 1 = 12,
9 + 1 = 10. Add 1 alternatively.

Srimathi said: 9 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: 9 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: 9 years ago

Yes, 10 is right answer.

Jada dalei said: 9 years ago

Nice solution, Thank you all.

Ajit singh said: 8 years ago

1th line : 7.8.9.
2th line 10.11.12.

Ans : 10.

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