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:
113 comments Page 3 of 12.
Logesh said:
4 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:
7 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:
3 months ago
Nice explanation, Thanks all.
(1)
Shiva said:
1 month ago
Excellent. Thanks all for explaining.
(1)
DHA said:
1 month ago
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)
Deepthi R said:
1 month ago
Great explanations, Thanks all.
(1)
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