Verbal Reasoning - Series Completion - Discussion
Discussion Forum : Series Completion - Section 1 (Q.No. 4)
Directions to Solve
Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
4.
In the series 2, 6, 18, 54, ...... what will be the 8th term ?
Answer: Option
Explanation:
Clearly, 2 x 3 = 6, 6 x 3 = 18, 18 x 3 = 54,.....
So, the series is a G.P. in which a = 2, r = 3.
Therefore 8th term = ar8-1 = ar7 = 2 x 37 = (2 x 2187) = 4374.
Discussion:
27 comments Page 2 of 3.
Bhumika said:
1 decade ago
I dont understand the answer.2,6,18,54,5th term,6th term,7th term,8th term(here we should get answeer) .how it comes 4374
Chollangi sankar said:
3 months ago
2 * 3 = 6.
3 * 3 = 18.
18 * 3 = 54.
54 * 3 = 162.
162 * 3 = 486.
486 * 3 = 1458.
1458 * 3 = 4374.
3 * 3 = 18.
18 * 3 = 54.
54 * 3 = 162.
162 * 3 = 486.
486 * 3 = 1458.
1458 * 3 = 4374.
Manjot singh said:
1 decade ago
2*3 = 6.
6*3 = 18.
18*3 = 54.
54*3 = 162.
162*3 = 486.
486*3 = 1458.
1458*3 = 4374.
6*3 = 18.
18*3 = 54.
54*3 = 162.
162*3 = 486.
486*3 = 1458.
1458*3 = 4374.
Arif said:
1 decade ago
There should be some easy method to solve this, Can any one have?
Papai said:
4 years ago
ar^n-1 where n=no of term, a=first elementary.
So,
2*3^7=4374.
So,
2*3^7=4374.
Sameer said:
1 decade ago
@Kanna.
Why we need to multiply with 3 With Given Numbers?
Why we need to multiply with 3 With Given Numbers?
Sameer said:
10 years ago
Why ^7 instead ^8 because there find out 8th place?
(1)
Chiran said:
1 decade ago
What is the meaning of a and r please explain me?
Aswini said:
1 decade ago
What does GP mean?can anyone explain me please.
(1)
Kanhay said:
1 decade ago
A means first term and are means common ratio.
(1)
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