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:
117 comments Page 3 of 12.
Temesgen Eskezia said:
9 months ago
Thank you all for explaining the answer.
(5)
Logesh said:
7 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:
10 months ago
Thank you everyone for explaining the answer.
(2)
Sathwika reddy said:
3 months ago
It was a good explanation. Thanks all.
(2)
Manoj said:
3 months ago
Very helpful. Good to practice. Thanks.
(2)
Varaprasad said:
1 decade ago
Only this question is thinkable one while compare to others.
(1)
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:
5 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:
5 years ago
Thanks @Akshara.
(1)
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