# Logical Reasoning - Number Series - Discussion

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

1.
Look at this series: 2, 1, (1/2), (1/4), ... What number should come next?
(1/3)
(1/8)
(2/8)
(1/16)
Explanation:

This is a simple division series; each number is one-half of the previous number.

In other terms to say, the number is divided by 2 successively to get the next result.

```4/2 = 2
2/2 = 1
1/2 = 1/2
(1/2)/2 = 1/4
(1/4)/2 = 1/8 and so on.```

Discussion:
128 comments Page 1 of 13.

Priyanka said:   4 weeks ago
The relation of the next number in the set is clearly half of the previous number. So, the answer is 1/8.
(1)

Ayush rawat said:   4 weeks ago
1/8 this is the correct option.

Mohammed said:   2 months ago
(9)

Manju said:   2 months ago
(4)

Anuj Doley said:   5 months ago
1/2 × 1 = 1/2,
1/2 × 2 = 1/4,
1/4 × 4 = 1/8.
(56)

Sukanya said:   6 months ago
(28)

Jaya said:   6 months ago
Yes, I too think and should be 1/8.
(13)

Sri lakshmi said:   7 months ago
Thanks all for giving the explanation.
(25)

Manzil rae said:   9 months ago
The explanation is not clear. please explain me.
(22)

Appu said:   9 months ago
4/2 = 2 how come?
The series itself starts with 2, then it could be like this.
2/2 =1 ,
1/2 = 1/2 ,
1/2÷2 = 1/4 ,
1/4÷2 = 1/8.
(58)