IndiaBIX

Verbal Reasoning - Series Completion

Exercise : Series Completion - Section 1
Directions to Solve

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

16.
2, 5, 9, ?, 20, 27
14
16
18
24
Answer: Option
Explanation:

The pattern is + 3, + 4, + 5, + 6,.....

So, missing term = 9 + 5 = 14.

17.
2, 3, 3, 5, 10, 13, ?, 43, 172, 177
23
38
39
40
Answer: Option
Explanation:

The pattern is + 1, x 1, + 2, x 2, + 3, x 3, + 4, x 4, + 5.

So, missing term = 13 x 3 = 39.

18.
9, 27, 31, 155, 161, 1127, ?
316
1135
1288
2254
Answer: Option
Explanation:

The pattern is x 3, + 4, x 5, + 6, x 7,.....

So, missing term = 1127 + 8 = 1135.

19.
2, 1, 2, 4, 4, 5, 6, 7, 8, 8, 10, 11, ?
9
10
11
12
Answer: Option
Explanation:

The given sequence is a combination of three series :

I. 1st, 4th, 7th, 10th, 13th terms i.e. 2, 4, 6, 8, ?

II. 2nd, 5th, 8th, 11th terms i.e. 1, 4, 7, 10

III. 3rd, 6th, 9th, 12th terms i.e. 2, 5, 8, 11

Clearly, I consists of consecutive even numbers. So, the missing term is 10.

20.
Which of the following will not be a number of the series 1, 8, 27, 64, 125,.....?
256
512
729
1000
Answer: Option
Explanation:

The given series consists of cubes of natural numbers only. 256 is not the cube of

any natural number.

Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers