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.
Logesh said:
2 months ago
Nice and Good explanation. Thanks all.
(5)
Palak said:
4 years ago
8*1-2 = 6.
6*2-3 = 9.
87*5-6 = 429.
6*2-3 = 9.
87*5-6 = 429.
(3)
Sun said:
6 months ago
Thank you everyone for explaining the answer.
(2)
Aayush said:
5 years ago
Solution : 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.
6 x 2 - 3 = 9,
9 x 3 - 4 = 23,
23 x 4 - 5 = 87,
87 x 5 - 6 = 429.
(1)
Akshara said:
4 years ago
You can understand this problem by understanding the relation between 9, 23 as shown in the solution 9'-3-4=23, and later you check the remaining numbers by using this method.
If it suitable for every number before 9 then you can do this with 87.
If it suitable for every number before 9 then you can do this with 87.
(1)
Prateek said:
4 years ago
Thanks @Akshara.
(1)
Loki said:
1 month ago
Nice explanation, Thanks all.
(1)
Divya said:
1 decade ago
How any one come to know that this series will go like this?
Josh said:
1 decade ago
It doesn't even give enough of a pattern to discern this answer.
Kavya gupta said:
1 decade ago
But the is according to the question, confusing, I cannot understand what is given solution?
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