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:
189 comments Page 16 of 19.
Shahbaz Ahmad Naik said:
1 decade ago
Sometimes the answers are very simple but due to unconfidancial we does not give it.
Amiya said:
1 decade ago
Why first come 4/2 not other? I can't under stand.
Ragu said:
1 decade ago
I am not understand your explanations about 1/8.
Atif said:
1 decade ago
I am not understand your all explanations about 1/2, 1/4 and 1/8.
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.
Venkatrao said:
1 decade ago
Simple interest formulas and how to solve the problems.
Bipin said:
1 decade ago
What is the no. series of the question.
3 , 34 , 192 , 782, ? , 1566
3 , 34 , 192 , 782, ? , 1566
Kishor.b.c said:
1 decade ago
Think logically you will get the answer.
Kalyani said:
1 decade ago
It is:
2^1 = 2.
2^0 = 1.
2^-1 = 1/2.
2^-2 = 1/4.
2^-3 = 1/8.
2^1 = 2.
2^0 = 1.
2^-1 = 1/2.
2^-2 = 1/4.
2^-3 = 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.
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