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?
128
226
324
429
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:
129 comments Page 8 of 13.

Vivek said:   1 decade ago
Please, anyone provide a brief solution for Shoeb Question.

Pavan said:   1 decade ago
The above one is a little bit tough as compared to the other problems. Nice problem.

Sushil said:   1 decade ago
Nice and helpful explanations. Thank you all.

Sanjana said:   1 decade ago
How to find the logic of the question, in which way we can solve this type of problems?

Princy said:   1 decade ago
In which way we can imagine the solution of such problem?

Shoeb said:   1 decade ago
Solve this if you are a master 99, 11, 88, __.

Shaunak said:   1 decade ago
It takes some time to solve, after practising it is easy now.

Thank you.

Anisha said:   1 decade ago
Thank you very much, it's very useful for me. Now I understand the method to solve the number series problems.

Kishore said:   1 decade 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.

Arthi said:   1 decade 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.


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