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 2 of 19.

Jyoti Rawandhe said: 1 decade ago

Thanks for giving this clear explanation...

Xduniya said: 1 decade ago

Simply in every step we should deduct 1/2 to get the result.

For eg:.

1/4 - 1/2 = 1/8.

Sindhu said: 1 decade ago

2/2=1,1/2,1/2/2=1/4,1/4/2=1/8

Deepa said: 1 decade ago

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

Subbu said: 1 decade ago

My point of view it is solve simply half half the number we will write that's all.

Veeru said: 1 decade ago

How can we estimate that we have consider first 4?

Because by dividing first number with 2 also we will get result.

Utharsh said: 1 decade ago

Every time the denominator get doubled and the numerator rest with 1.

Umesh said: 1 decade ago

Here if we multiply each number By 1/2 the we will get next number.

Akshay said: 1 decade ago

1/8

From 1 to each number is divided by 2 than we get next number.

M.ratnakar said: 1 decade ago

How we got the logic can you explain detail.

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

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