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:
105 comments Page 9 of 11.
Durga said:
1 decade ago
How do we take first 3 only? Please answer the question because I would like to learn the reasoning ability.
Katroth ram said:
1 decade ago
Answer is : 10.
Solution is: 7+3 = 10, 10-2 = 8, 8+3 = 11, 11-2 = 9, 9+3 = 12, 12-2 = 10 is correct or not.
Solution is: 7+3 = 10, 10-2 = 8, 8+3 = 11, 11-2 = 9, 9+3 = 12, 12-2 = 10 is correct or not.
Sadichha said:
1 decade ago
This is a simple alternating addition & subtraction series.
7+3=10. 8+3=11.
10-2=8. 11-2=9.
9+3=12. 12-2=10.
7+3=10. 8+3=11.
10-2=8. 11-2=9.
9+3=12. 12-2=10.
Veeradevi said:
1 decade ago
Suggest me if the logic is wrong.
Add sequence of 3,4,5... in the odd position to the 7 and add sequence of 1,2,3.... in the even position to the 7 then we get our required result.
7+3 = 10.
7+1 = 8.
7+4 = 11.
7+2 = 9.
7+5 = 12.
7+3 = 10.
Add sequence of 3,4,5... in the odd position to the 7 and add sequence of 1,2,3.... in the even position to the 7 then we get our required result.
7+3 = 10.
7+1 = 8.
7+4 = 11.
7+2 = 9.
7+5 = 12.
7+3 = 10.
Saral killer said:
1 decade ago
7, 10, 8, 11, 9, 12, ?
The answer is 10 why because.
Just those are compare to above series in that 7, 8, 9 and 10, 11, 12 sequence no's are display so after 7 comes 8 and after 8 comes 9 and after 9 comes 10 so answer is "10".
The answer is 10 why because.
Just those are compare to above series in that 7, 8, 9 and 10, 11, 12 sequence no's are display so after 7 comes 8 and after 8 comes 9 and after 9 comes 10 so answer is "10".
Zuqarnain said:
1 decade ago
there are actually two series,
7, 8, 9, 10...
10, 11, 12...
So,
we place 7, 10, 8, 11, 9, 12, 10.
7, 8, 9, 10...
10, 11, 12...
So,
we place 7, 10, 8, 11, 9, 12, 10.
Pavan Bhushan said:
1 decade ago
This is an alternating series.
1st series is 7, 8, 9, 10,.....
2nd series is 10, 11, 12, 13,.....
1st series is 7, 8, 9, 10,.....
2nd series is 10, 11, 12, 13,.....
Debendra said:
1 decade ago
Look at this series: 7, 10, 8, 11, 9, 12, .
Ans -7+3 = 10,
8+3 = 11,
9+3 = 12,
10 -- Ans (7+1,8+1, (9+1) - Ans.
Ans -7+3 = 10,
8+3 = 11,
9+3 = 12,
10 -- Ans (7+1,8+1, (9+1) - Ans.
Anusha said:
1 decade ago
7, 8, 9, 10...
10, 11, 12...
Then we place 7, 10, 8, 11, 9, 12, 10.
10, 11, 12...
Then we place 7, 10, 8, 11, 9, 12, 10.
Ishwar.Kesari said:
1 decade ago
In first number adding three and second number subtracting two and so on you will get the missing number.
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