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 1 of 5.
Arnab said:
1 year ago
2 * 3 = 6.
6 * 3 = 18,
18 * 3 = 54,
54 * 3 = 162.
6 * 3 = 18,
18 * 3 = 54,
54 * 3 = 162.
(24)
Prasanth A said:
1 year ago
Let's analyze the relationship between consecutive terms:
From 2 to 6, each term is multiplied by 3 (2 * 3 = 6).
From 6 to 18, each term is again multiplied by 3 (6 * 3 = 18).
From 18 to 54, each term is multiplied by 3 (18 * 3 = 54).
So, it follows a geometric sequence where each term is obtained by multiplying the previous term by 3.
Following this pattern, the next number in the series should be;
54×3 = 162.
Therefore, the next number in the series should be 162.
From 2 to 6, each term is multiplied by 3 (2 * 3 = 6).
From 6 to 18, each term is again multiplied by 3 (6 * 3 = 18).
From 18 to 54, each term is multiplied by 3 (18 * 3 = 54).
So, it follows a geometric sequence where each term is obtained by multiplying the previous term by 3.
Following this pattern, the next number in the series should be;
54×3 = 162.
Therefore, the next number in the series should be 162.
(3)
Mahesh Dalle said:
2 years ago
2+4 = 6
(4×3=12).
6+12 = 18
(12×3=36).
18+36 = 54.
(36×3=108)
54+108 = 162.
(4×3=12).
6+12 = 18
(12×3=36).
18+36 = 54.
(36×3=108)
54+108 = 162.
(9)
Parikshit Das said:
3 years ago
According to me, the solution is;
2*3^0 = 2.
2*3^1 = 6.
2*3^2 = 18.
2*3^3 = 54.
2*3^4 = 162.
2*3^0 = 2.
2*3^1 = 6.
2*3^2 = 18.
2*3^3 = 54.
2*3^4 = 162.
(20)
Uttam rokaya said:
3 years ago
2*2 + 2 = 6.
6*2 + 6 = 18.
18*2 + 18 = 54.
54*2 + 54 = 162.
6*2 + 6 = 18.
18*2 + 18 = 54.
54*2 + 54 = 162.
(22)
Binayak said:
4 years ago
2*3 = 6,
6*3 = 18,
18*3 = 54,
54*3 = 162.
6*3 = 18,
18*3 = 54,
54*3 = 162.
(31)
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.
Sudhagar V said:
5 years ago
2 * 9 = 18,
6 * 9 = 54,
18 * 9 = 162.
6 * 9 = 54,
18 * 9 = 162.
(3)
YOGENDRA KURVE said:
5 years ago
9*2= 18*6 = 108.
9*3 =27*6 = 162.
9*3 =27*6 = 162.
(1)
Bhargavi kora said:
5 years ago
2 * 3 = 6,
6 * 3 = 18,
18 * 3 = 54,
54 * 3 = 162.
6 * 3 = 18,
18 * 3 = 54,
54 * 3 = 162.
(3)
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