Logical Reasoning - Number Series - Discussion
Discussion Forum : Number Series - Type 1 (Q.No. 19)
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
19.
Look at this series: 8, 6, 9, 23, 87 , ... What number should come next?
Answer: Option
Explanation:
8 x 1 - 2 = 6
6 x 2 - 3 = 9
9 x 3 - 4 = 23
23 x 4 - 5 = 87
87 x 5 - 6 = 429 ...
Discussion:
110 comments Page 3 of 11.
Laxmikanth Jamadar said:
1 decade ago
Yes ! Your Right Sir after 429 number should come next 2567.
It is 429*6-7= 2567 so that again calculate continuously...
It is 429*6-7= 2567 so that again calculate continuously...
Hasan Faraz said:
1 decade ago
In Type 1 this is the only question that required logical thinking, rest all questions were comparatively very easy.
VARUN said:
10 years ago
Very easy:
8*1 = 8-2 = 6.
6*2 = 12-3 = 9.
9*3 = 27-4 = 23.
23*4 = 92-5 = 87.
87*5 = 435-6 = 429.
So answer is 429.
8*1 = 8-2 = 6.
6*2 = 12-3 = 9.
9*3 = 27-4 = 23.
23*4 = 92-5 = 87.
87*5 = 435-6 = 429.
So answer is 429.
Kishore said:
9 years ago
@Arthi.
It is a sequence of cubes.
So,
1^3 = 1.
2^3 = 8.
3^3 = 27.
4^3 = 64 .
Therefore, the answer is 64.
It is a sequence of cubes.
So,
1^3 = 1.
2^3 = 8.
3^3 = 27.
4^3 = 64 .
Therefore, the answer is 64.
Anisha said:
9 years ago
Thank you very much, it's very useful for me. Now I understand the method to solve the number series problems.
Arthi said:
9 years ago
Solve this 1, 8, 27, ?.
a) 37 b) 47 c) 51 d) 64
Here d) 64 is the right answer. How? Please explain anyone.
a) 37 b) 47 c) 51 d) 64
Here d) 64 is the right answer. How? Please explain anyone.
Kanchan said:
1 decade ago
According to me the explanation is not enough and clear that is why anyone is not able to solve the problem?
Priyambika pattnayak said:
3 years ago
8 * 1 = 8 - 2 = 6.
6 * 2 = 12 - 3 = 9,
9 * 3 = 27 - 4 = 23,
23 * 4 = 92 - 5 = 87,
87 * 5 = 435 - 6 = 429.
6 * 2 = 12 - 3 = 9,
9 * 3 = 27 - 4 = 23,
23 * 4 = 92 - 5 = 87,
87 * 5 = 435 - 6 = 429.
(53)
Madhan said:
5 months ago
8 * 1 = 8 - 2 = 6,
6 * 2 = 12 - 3 = 9,
9 * 3 = 27 - 4 = 23,
23 * 4 = 92 - 5 = 87,
87 * 5 = 435 - 6 = 429.
6 * 2 = 12 - 3 = 9,
9 * 3 = 27 - 4 = 23,
23 * 4 = 92 - 5 = 87,
87 * 5 = 435 - 6 = 429.
(25)
Bhimsen Thokar said:
10 years ago
Well it depends on the question to create a logic. Only one logic is not enough to find the next term.
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