Verbal Reasoning - Series Completion - Discussion

Discussion Forum : Series Completion - Section 1 (Q.No. 23)
Directions to Solve

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


23.
3, 15, ?, 63, 99, 143
27
35
45
56
Answer: Option
Explanation:

The terms of the given series are (22 - 1), (42 - 1),....., (82 - 1), (102 - 1), (122 - 1).

So, missing term = (62 - 1) - (36 - 1) = 35.

Discussion:
3 comments Page 1 of 1.

Mashooq said:   7 years ago
143-99=44,
99-63=36,
63-28=35,
35-20=15,
15-12=3,
44-8=36 ;36-8=28; 28-8=20 ;20-8=12.
(2)

Rashmi said:   9 years ago
Good logic @Vatsu.
(1)

Vatsu said:   1 decade ago
3*5=15
5*7=35
7*9=63
9*11=99
11*13=143
(3)

Post your comments here:

Your comments will be displayed after verification.