Logical Reasoning - Number Series - Discussion

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

Number Series

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

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:

182 comments Page 15 of 19.

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.

Pratheep said: 8 years ago

Really nice. Thanks for the given explanation.

Saran said: 8 years ago

I can't understand this. Give me the explanation clearly.

Ankit said: 8 years ago

Thank you for the given explanations.

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