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:
116 comments Page 7 of 12.
Sanjana said:
9 years ago
How to find the logic of the question, in which way we can solve this type of problems?
Princy said:
9 years ago
In which way we can imagine the solution of such problem?
Shoeb said:
9 years ago
Solve this if you are a master 99, 11, 88, __.
Shaunak said:
9 years ago
It takes some time to solve, after practising it is easy now.
Thank you.
Thank you.
Anisha said:
10 years ago
Thank you very much, it's very useful for me. Now I understand the method to solve the number series problems.
Kishore said:
10 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.
Arthi said:
10 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.
Goutam roy said:
10 years ago
Then where the 8 come from.
Here. 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.
Then what is the logic for "8".
6 is not the first number here. 8 is the first number.
Here. 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.
Then what is the logic for "8".
6 is not the first number here. 8 is the first number.
Devender said:
10 years ago
Can't understand this question please help?
Stephan said:
10 years ago
8 + 6 + 9 = 23 threw me off. Didn't come up with the solution. By far the hardest in the collection.
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