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)
Answer: Option
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:
183 comments Page 15 of 19.

JHANSI said:   9 years ago
Another logic of this sum is; Divide the given number by 2, then you will get the answer. Check it.

M.RAGHURAM PGDM 1 said:   9 years ago
Half of the number taken as sequence so answer is 1/8.

Janmejaya meher said:   9 years ago
Thank you for all your explanation.

Rajeswari said:   9 years ago
1/8 + 1/8 = 1/4,
1/4 + 1/4 = 1/2,
1/2 + 1/2 = 1,
1 + 1 = 2,
So, the answer is 1/8.

Vedant said:   9 years ago
Very very helpful. Thanks for all your explanation.

SHOBHA said:   9 years ago
Thank you all.

Sumeet said:   9 years ago
In simple 2^1, 2^0, 2^-1, 2^-2, 2^-3, ... and we get 2 ,1, (1/2), (1/4), (1/8) and so on.

Shubham said:   9 years ago
Can anyone help me in finding the next number.

1) 4,9,10,21,22,39,34,57, ?
2) 15,105,315,693,1287, ?
3) 3,20,63,144, 275, ?

Bhanu said:   9 years ago
It's very tough to identify the series. How to find it? Please give me the shortcut.

Julius said:   9 years ago
What is the meaning of this sign ^?

Please tell me correctly.


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