Logical Reasoning - Number Series - Discussion
Discussion Forum : Number Series - Type 1 (Q.No. 17)
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
17.
Look at this series: 2, 6, 18, 54, ... What number should come next?
Answer: Option
Explanation:
This is a simple multiplication series. Each number is 3 times more than the previous number.
Discussion:
42 comments Page 4 of 5.
Najju gdk said:
1 decade ago
Hi.
This is najju.
It is 2 methods.
1. Take first number 2 and multiply by 3.
2*3=6.
6*3=18.
18*3=54.
54*3=162.
Or.
In easy step.
Add each number 3 times.
2+2+2=6.
6+6+6=18.
18+18+18=54.
54+54+54=162.
This is najju.
It is 2 methods.
1. Take first number 2 and multiply by 3.
2*3=6.
6*3=18.
18*3=54.
54*3=162.
Or.
In easy step.
Add each number 3 times.
2+2+2=6.
6+6+6=18.
18+18+18=54.
54+54+54=162.
Ramkumar said:
1 decade ago
This series (2, 6, 18, 54, ...) followed with multiplied by 3.
(2)*3 = (6)*3 = (18)*3 = (54)*3 = (162).
So answer is: 162.
(2)*3 = (6)*3 = (18)*3 = (54)*3 = (162).
So answer is: 162.
Prathyusha said:
2 decades ago
2*3=6
6*3=18
18*3=54
54*3=162
162 is answer
6*3=18
18*3=54
54*3=162
162 is answer
Swapnil said:
1 decade ago
It can also be like this:
Series:- 2, 6, 18, 54..
2*1=2.
2*3=6 So 3+6=9.
2*9=18 So 9+18=27.
2*27=54 So 54+27=81.
2*81=162.
Series:- 2, 6, 18, 54..
2*1=2.
2*3=6 So 3+6=9.
2*9=18 So 9+18=27.
2*27=54 So 54+27=81.
2*81=162.
Prince Rambade said:
1 decade ago
Why not this can follow this rule.
02 + 4*(3^0) = 6.
06 + 4*(3^1) = 18.
18 + 4*(3^2) = 54.
54 + 4*(3^3) = 108 ?
This can also be possible. isn't it ?
02 + 4*(3^0) = 6.
06 + 4*(3^1) = 18.
18 + 4*(3^2) = 54.
54 + 4*(3^3) = 108 ?
This can also be possible. isn't it ?
Kiran said:
1 decade ago
Rule.
02 + 4*(3^0) = 6.
06 + 4*(3^1) = 18.
18 + 4*(3^2) = 54.
54 + 4*(3^3) = 108 ?
02 + 4*(3^0) = 6.
06 + 4*(3^1) = 18.
18 + 4*(3^2) = 54.
54 + 4*(3^3) = 108 ?
Angel said:
1 decade ago
First no is multiplied by 3 to get the next no.
So our answer is 54*3=162.
So our answer is 54*3=162.
PATEL VIKI A said:
1 decade ago
Second answer is,
First series 2 & 18 & 162... is multiply by 9.
2*9=18.
18*9=162.
And second series 6 & 54 &
6*9 = 54.
54*9 = 486.
ANS = 2 6 18 54 162 486..
First series 2 & 18 & 162... is multiply by 9.
2*9=18.
18*9=162.
And second series 6 & 54 &
6*9 = 54.
54*9 = 486.
ANS = 2 6 18 54 162 486..
Dinesh bijarniya said:
1 decade ago
Difference between 2 and 6 = 4.
Difference between 6 and 18 = 12.
Difference between 18 and 54 = 36.
Next number = 4x3=12, 12x3=36, 36x3=108.
Next number = 54 + 108 = 162.
Difference between 6 and 18 = 12.
Difference between 18 and 54 = 36.
Next number = 4x3=12, 12x3=36, 36x3=108.
Next number = 54 + 108 = 162.
GAGAN said:
1 decade ago
Thanks for help.
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