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# Number Series Questions for exams

Exams Guru10 months ago 152.5K Views All most in all the entrance tests, as well as interviews Number Series Questions, are asked to evaluate IQ. Solve these Number Series problems and practice for competitive exams. People who love mathematics definitely enjoy solving Number Series Questions and answers. This section is devoted to all such enthusiast brain buddies.

Let's have some important Number Series Questions and Answers to solve yourself for better practice of competitive exams. As well as of these questions, you should know Number Series Problems with Solutions for saving time in the competitive Exams.

## Number Series Questions and Answers logical reasoning problems:

Q :

127, 131, 139, ?, 151, 157, 163, 167,

(A) 149

(B) 147

(C) 141

(D) 143

Correct Answer : C

Q :

2, 12, 36, 80, 150, ?

(A) 250

(B) 252

(C) 200

(D) 270

Correct Answer : B
Explanation :

Explanation:

A unique pattern has been made into use in this series.

All numbers are (n^3 + n^2) where n is 1, 2, 3 and so on.

Q :

6, 14, 36, 98, ?

(A) 276

(B) 275

(C) 220

(D) 274

Correct Answer : A
Explanation :

Explanation:
6 = 1^1 + 2^1 + 3^1
14 = 1^2 + 2^2 + 3^2
36 = 1^3 + 2^3 + 3^3
98 = 1^4 + 2^4 + 3^4
Thus the next number will be
1^5 + 2^5 + 3^5 = 276

Q :

5, 16, 49, 104, ?

(A) 171

(B) 191

(C) 181

(D) 161

Correct Answer : C
Explanation :

Explanation:
+11 =16
+33 =49
+55 =104
+77 =181

Q :

8, 7, 11, 12, 14, 17, 17, 22, ?

(A) 27

(B) 20

(C) 24

(D) 22

Correct Answer : B
Explanation :

Explanation:
There are two series (8, 11, 14, 17, 20) and (7, 12, 17, 22) increasing by 3 and 5 respectively.

Q :

2, 6, 12, 20, 30, 42, 56, ?

(A) 61

(B) 64

(C) 70

(D) 72

Correct Answer : D
Explanation :

The pattern is 1 x 2, 2 x 3, 3 x 4, 4 x 5, 5 x 6, 6 x 7, 7 x 8.
So, the next number is 8 x 9 = 72.

Q :

4, -8, 16, -32, 64, ?

(A) 128

(B) -128

(C) 192

(D) -192

Correct Answer : B
Explanation :

Explanation:
Each number is the proceeding number multiplied by -2.
So, the required number is -128.

Q :

7, 26, 63, 124, 215, 342, ?

(A) 481

(B) 511

(C) 391

(D) 421

Correct Answer : B
Explanation :

Explanation:
Numbers are (23 – 1), (33 – 1), (43 – 1), (53 – 1), (63 – 1), (73 – 1) etc.
So, the next number is (83 – 1) = (512 – 1) = 511.

Q :

1, 6, 13, 22, 33, ?

(A) 44

(B) 45

(C) 46

(D) 47

Correct Answer : C
Explanation :

The pattern is + 5, + 7, + 9, + 11,...
.'. Missing number = 33 + 13 = 46.[/

Q :

24, 60, 120, 210, ?

(A) 300

(B) 420

(C) 336

(D) 400

Correct Answer : C

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