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 7 of 11.
Sharanya said:
1 decade ago
This answer is simple.
1st add 3, next subtract 2.
7+3=10.
10-2=8.
8+3=11.
11-2=9.
9+3=12.
12-2=10.
Answer 10.
1st add 3, next subtract 2.
7+3=10.
10-2=8.
8+3=11.
11-2=9.
9+3=12.
12-2=10.
Answer 10.
Bhushan Salunkhe said:
1 decade ago
7+3=10
10-2=8
8+3=11
11-2=9
9+3=12
12-2=10
Because look the series of addition and subtraction 1st add 3 you get 10 then subtraction 2 you get 8 same next again add 3 get 11.
Again same - 2 get 9 again add 3 get 12 obviously next is subtraction 12-2 = 10.
The series + - + - + -
10-2=8
8+3=11
11-2=9
9+3=12
12-2=10
Because look the series of addition and subtraction 1st add 3 you get 10 then subtraction 2 you get 8 same next again add 3 get 11.
Again same - 2 get 9 again add 3 get 12 obviously next is subtraction 12-2 = 10.
The series + - + - + -
Debendra said:
1 decade ago
7+3=10
8+3=11
9+3=12
10+3=13
Answer 10
8+3=11
9+3=12
10+3=13
Answer 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.
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.
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.
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,.....
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.
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".
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.
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