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:
110 comments Page 5 of 11.

Akshita said:   4 years ago
Thanks for explaining the answer.
(15)

Shreya said:   4 years ago
7 + 3 = 10,
10 - 2 = 8,
8 + 3 = 11,
11 - 2 = 9,
9 + 3 = 12,
12 - 2 = 10.
(45)

Kavya said:   4 years ago
7+3=10,
10-2=8,
8+3=11,
11-2=9,
9+3=12.
And the next number is;
12-2=10.
(12)

Rupesh Kumar Yadav said:   4 years ago
7 + 3 = 10,
10 - 2 = 8,
8 + 3 = 11,
11 - 2 = 9,
9 + 3 = 12,
12 - 2 = 10.
(7)

Chemayek said:   5 years ago
Here, the logic is; add +3 and subtract -2 consistently.
(2)

Meet kaur said:   5 years ago
10-7 = 3
10--8 = 2
11--8 =3
11-9 =2
Same where,
12-9 = 3
Then,
12 - 2 = 10.
(4)

Akash said:   5 years ago
It's 10, the logic is the addition of 3 and subtraction of 2.
(2)

NEBU CHERIAN said:   6 years ago
7+3=10,
10-2=8,
8+3=11,
11-2=9.
9+3=12.
12-2=10.

So, the Answer is 10.
(1)

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

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


Post your comments here:

Your comments will be displayed after verification.