Verbal Reasoning - Series Completion - Discussion
Discussion Forum : Series Completion - Section 1 (Q.No. 7)
Directions to Solve
Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
7.
1, 2, 3, 6, 9, 18, ?, 54
Answer: Option
Explanation:
The pattern is x 2, x 3/2, x 2, x 3/2, x 2,.....
So, missing term = 18 x 3/2 = 27.
Discussion:
20 comments Page 2 of 2.
Prem rana said:
1 decade ago
1*3 = 3.
3*2 = 6.
3*2 = 6.
3*3 = 9.
9*2 = 18.
9*3 = 27.
So you can easily find out.
3*2 = 6.
3*2 = 6.
3*3 = 9.
9*2 = 18.
9*3 = 27.
So you can easily find out.
Nalavan said:
1 decade ago
Each odd number is follow each even so in between 54 27, 18, 36 so 18 is already there 36 is not possible because near of 54 than answer is 27.
Sumanth geras said:
1 decade ago
1, 2, 3, 6, 9, 18,.....,54.
Take alternate positions 2 6 18 54.
2*3=6.
6*3=18.
18*3=54.
Each multiplying with 3.
Similarly take the alternate numbers 1 3 9.
1*3=3.
3*3=9.
9*3=27.
This is also a method which holds good for many problems.
Take alternate positions 2 6 18 54.
2*3=6.
6*3=18.
18*3=54.
Each multiplying with 3.
Similarly take the alternate numbers 1 3 9.
1*3=3.
3*3=9.
9*3=27.
This is also a method which holds good for many problems.
(3)
Julia said:
9 years ago
1*2 = 2.
2*1.5 = 3.
3*2 = 6.
6*1.5 = 9.
9*2 = 18.
18*1.5 = 27.
27*2 = 54.
2*1.5 = 3.
3*2 = 6.
6*1.5 = 9.
9*2 = 18.
18*1.5 = 27.
27*2 = 54.
(3)
Hitesh said:
7 years ago
2-1 = 1,
3-2 = 1,
6-3 = 3,
9-6 = 3,
18-9 = 9,
x-18 = 9,
x = 18 + 9 = 27.
3-2 = 1,
6-3 = 3,
9-6 = 3,
18-9 = 9,
x-18 = 9,
x = 18 + 9 = 27.
(3)
Divya said:
5 years ago
By paring alternate number we can find 2/1 = 2
6/3 = 2
18/9 = 2.
54 should be twice of a number that is =27.
So, when 54/27=2.
6/3 = 2
18/9 = 2.
54 should be twice of a number that is =27.
So, when 54/27=2.
(5)
P.Rushi kesh yadav said:
5 years ago
1 + 2 = 3,
3 + 6 = 9,
9 + 18 = 27.
3 + 6 = 9,
9 + 18 = 27.
(7)
SAKSHAM said:
4 years ago
HERE WE CAN JUST SPLIT THE SERIES AS;
1 2 3 6
9 18 ? 54
NOW YOU CAN EASILY FIND THAT 1*9= 9.
2*9 = 18,
AND 6*9= 54 S0,
3 *9 = 27.
1 2 3 6
9 18 ? 54
NOW YOU CAN EASILY FIND THAT 1*9= 9.
2*9 = 18,
AND 6*9= 54 S0,
3 *9 = 27.
(13)
Rutvika Ravindra Wankhade said:
3 years ago
2 * 9 = 18.
And 6 * 9 = 54 so,
3 * 9 = 27.
And 6 * 9 = 54 so,
3 * 9 = 27.
(1)
Shameema N said:
1 year ago
1, 2, 3, 6, 9, 18, ?, 54.
1 + 2 = 3,
1 + 2 + 3=6,
3 + 6 = 9,
3 + 6 + 9 = 18,
9 + 18 = 27.
9 + 18 + 27 = 54.
1 + 2 = 3,
1 + 2 + 3=6,
3 + 6 = 9,
3 + 6 + 9 = 18,
9 + 18 = 27.
9 + 18 + 27 = 54.
(12)
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