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 4 of 11.
Sandeep said:
1 decade ago
It's so easy to understand first you all have to think which operation is going on the question then solve on the operation.
Shaifali said:
1 decade ago
I can not understand what is given solution?
Sameer badoliya said:
1 decade ago
Its very simple according competitions because its can solve by 10 standard students.
Arun said:
1 decade ago
No one can predict what comes next, if the series is given like this and the rest of the questions are good but very easy.
Nand Kishore said:
1 decade ago
It very complicated but very easy if understand thanks to the all persons commented on this, which make me understand so nicely and perfectly.
Samuel said:
1 decade ago
No one can guess it. How difficult it is.
Laxmikanth Jamadar said:
1 decade ago
Yes ! Your Right Sir after 429 number should come next 2567.
It is 429*6-7= 2567 so that again calculate continuously...
It is 429*6-7= 2567 so that again calculate continuously...
Dinendra Pal said:
1 decade ago
Simple dear how can see,
8*1 = 8-2 --> 6 1st num.
6*2 = 12-3 --> 9 2nd num.
9*3 = 27-4 --> 23 3rd num.
23*4 = 92-5 --> 87 4th num.
87*5 = 435-6 --> 429 Answer.
8*1 = 8-2 --> 6 1st num.
6*2 = 12-3 --> 9 2nd num.
9*3 = 27-4 --> 23 3rd num.
23*4 = 92-5 --> 87 4th num.
87*5 = 435-6 --> 429 Answer.
Surendar jala said:
1 decade ago
Understanding logic is some what difficult.
Hasan Faraz said:
1 decade ago
In Type 1 this is the only question that required logical thinking, rest all questions were comparatively very easy.
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