Verbal Reasoning - Series Completion - Discussion

Discussion Forum : Series Completion - Section 1 (Q.No. 8)
Directions to Solve

Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.


8.
6, 13, 25, 51, 101, ?
201
202
203
205
Answer: Option
Explanation:

The pattern is x 2 + 1, x 2 - 1, x 2 + 1, x 2 - 1,.....

So, missing term = 101 x 2 + 1 = 203.

Discussion:
12 comments Page 2 of 2.

Deepak said:   1 decade ago
6*2+1=13.
13*2-1=25.
25*2+1=51.
51*2-1=101.
101*2+1=203.

Rajesh said:   1 decade ago
6, 13, 25, 51, 101..

6,13.
13+(6+6).
25+(13+13).
51+(25+25).
101+(51+51).
= 203.


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