Aptitude - Numbers - Discussion
Discussion Forum : Numbers - General Questions (Q.No. 96)
96.
How many terms are there in the G.P. 3, 6, 12, 24, ... , 384 ?
Answer: Option
Explanation:
Here a = 3 and r = | 6 | = 2. Let the number of terms be n. |
3 |
Then, tn = 384 arn-1 = 384
3 x 2n - 1 = 384
2n-1 = 128 = 27
n - 1 = 7
n = 8
Number of terms = 8.
Discussion:
6 comments Page 1 of 1.
Tanu said:
4 years ago
GP means Geometrical progression.
Priya singh said:
4 years ago
@Kunal.
It is a Geometrical progression (G.P).
It is a Geometrical progression (G.P).
Kunal said:
4 years ago
What is G. P. In this question? Please explain.
Pranitha said:
5 years ago
128 = (2*2*2*2*2*2*2).
Like that 128 = 2^7.
Like that 128 = 2^7.
LOGHA PRAKASH said:
6 years ago
Can someone tell me how to convert like 128 = 2^7 quickly?
Sachinaeron said:
8 years ago
Please explain this question in shortcut method.
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