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 7 of 11.
Arthi said:
9 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.
VARUN said:
10 years ago
Very easy:
8*1 = 8-2 = 6.
6*2 = 12-3 = 9.
9*3 = 27-4 = 23.
23*4 = 92-5 = 87.
87*5 = 435-6 = 429.
So answer is 429.
8*1 = 8-2 = 6.
6*2 = 12-3 = 9.
9*3 = 27-4 = 23.
23*4 = 92-5 = 87.
87*5 = 435-6 = 429.
So answer is 429.
Anu said:
10 years ago
Are there other questions like this on this site?
Aman said:
10 years ago
It was easy:
8x1-2 = 6.
6x2-3 = 9.
9x3-4 = 23.
23x4-5 = 87.
87x5-6 = 429.
It was easy question just think in other order.
8x1-2 = 6.
6x2-3 = 9.
9x3-4 = 23.
23x4-5 = 87.
87x5-6 = 429.
It was easy question just think in other order.
Kanhu said:
10 years ago
8*1-2 = 6.
6*2-3 = 9.
9*3-4 = 23.
23*4-5 = 87.
87*5-6 = 429.
6*2-3 = 9.
9*3-4 = 23.
23*4-5 = 87.
87*5-6 = 429.
Abhishek said:
10 years ago
Very easy series are there.
Shaffi said:
10 years ago
Very sad how can we understand this one?
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