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?
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 3 of 19.
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.
4/2 = 2
2/2 = 1
1/2 = 1/2
(1/2)/2 = 1/4
(1/4)/2 = 1/8 and so on.
Priyanka said:
2 years ago
The relation of the next number in the set is clearly half of the previous number. So, the answer is 1/8.
(5)
Jitendra sawwalakhe said:
1 decade ago
we know that,the above no.decrease in order so,
2
1
1/2 = 0.5
1/4 = 0.25
1/8 = 0.125. So answer = 1/8.
2
1
1/2 = 0.5
1/4 = 0.25
1/8 = 0.125. So answer = 1/8.
Surbhi agrawal said:
1 decade ago
Look at this:
2 - 1 = 1.
1 - 1/2 = 1/2.
1/2 - 1/4 = 1/4 .
Now,
1/4 - 1/8 = 1/8.
So answer is 1/8.
2 - 1 = 1.
1 - 1/2 = 1/2.
1/2 - 1/4 = 1/4 .
Now,
1/4 - 1/8 = 1/8.
So answer is 1/8.
Santhosh said:
9 years ago
1 2 3.
4 5 ?
What comes in the question mark place?
Think logically.
And I'm saying it isn't 6.
4 5 ?
What comes in the question mark place?
Think logically.
And I'm saying it isn't 6.
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.
Vinod said:
1 decade ago
Hey its very easy see.
2^1, 2^0, 2^-1, 2^-2, 2^-3
2^1=2
2^0=1
2^-1=(1/2)
2^-2=(1/4)
2^-3=(1/8)
2^1, 2^0, 2^-1, 2^-2, 2^-3
2^1=2
2^0=1
2^-1=(1/2)
2^-2=(1/4)
2^-3=(1/8)
Parveen said:
1 decade ago
I am bit confuse, regarding Reasoning. Get to how to do it all this, and about reasoning.
(1)
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.
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.
For eg:.
1/4 - 1/2 = 1/8.
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