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:
41 comments Page 2 of 5.
Akash kumar said:
6 years ago
2 * 9 = 18,
6 * 9 = 54,
18 * 9 = 162.
6 * 9 = 54,
18 * 9 = 162.
(1)
Ranjan said:
8 years ago
Hi,
2*1=2.
2*3=6.
2*9=18.
2*27=54.
2*54=108.
2*1=2.
2*3=6.
2*9=18.
2*27=54.
2*54=108.
(1)
Sanjay said:
8 years ago
2 x 2 = 4+2 = 6.
6 x 2 = 12+6 = 18.
18 x 2 = 36+18 = 54.
54 x 2 = 108+54 = 162.
6 x 2 = 12+6 = 18.
18 x 2 = 36+18 = 54.
54 x 2 = 108+54 = 162.
Jomon said:
1 decade ago
2*9=18
6*9=54
18*9=162
162 is answer
6*9=54
18*9=162
162 is answer
Ramesh 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, 12x 3=36, 36x3= 108
Next number = 54 + 108=162
Difference between 6 and 18- 12
Difference between 18 and 54 = 36
Next number = 4x3=12, 12x 3=36, 36x3= 108
Next number = 54 + 108=162
Sourav said:
1 decade ago
6-2=4*3^0
18-6=12=4*3^1
54-18=36=4*9=4*3^2
Then next difference will be 4*3^3
Then number will be 81+54=135
18-6=12=4*3^1
54-18=36=4*9=4*3^2
Then next difference will be 4*3^3
Then number will be 81+54=135
Sarmistha said:
1 decade ago
2*3=6
2*(3*3)=18
2*(3*3*3)=54
2*(3*3*3*3)=162
So, the answer is 162.
2*(3*3)=18
2*(3*3*3)=54
2*(3*3*3*3)=162
So, the answer is 162.
Malar said:
1 decade ago
2-6=4*3
6-8=12*3
18-54=36*3=108.
why didnot assume like this
6-8=12*3
18-54=36*3=108.
why didnot assume like this
Mahesh said:
1 decade ago
2+2+2=6
6+6+6=18
18+18+18=54
54+54+54=162
6+6+6=18
18+18+18=54
54+54+54=162
Chanchal chauhan said:
4 years ago
2*3 = 6.
2*3^2 = 18,
2*3^3 = 54,
2*3^4 = 162.
2*3^2 = 18,
2*3^3 = 54,
2*3^4 = 162.
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