Number Series: Find Wrong Number in the Series

Published on Friday, December 09, 2016
Directions ( 1-5): In the following number series one number is wrong. Find out the wrong number.

Ques 1. 

39, 42, 48, 59, 84, 132
1. 132
2. 42
3. 48
4. 59
5. 84

Ques 2.

11, 18, 30, 40, 59, 86
1. 30
2. 11
3. 18
4. 59
5. 86


Ques 3.

5, 30, 59, 119, 209, 335
1. 59
2. 335
3. 5
4. 119
5. 30

Ques 4. 

353, 385, 316, 441, 225, 568
1. 568
2. 353
3. 385
4. 225
5. 316

Ques 5.

21, 29, 84, 756, 12096, 302400
1. 12096
2. 29
3. 84
4. 756
5. 21

Answer :

1. 4;
The series is 

Hence, there should be 60 in place of 59.

2. 1;
The series is 

Hence, there should be 27 in place of 30.

3. 5;
The series is 
2³ - 3 = 5,      3³ - 4 = 23,     4³-5 = 59
5³-6 = 119,    6³ - 7 = 209,   7³ - 8 = 335
Hence, there should be 23 in place of 30.

4. 3;
The series is 
Hence, there should be 380 in place of 385.

5. 2;
The series is 

Hence, there should be 21 in place of 29.





About me

ramandeep singh

My name is Ramandeep Singh. I authored the Quantitative Aptitude Made Easy book. I have been providing online courses and free study material for RBI Grade B, NABARD Grade A, SEBI Grade A and Specialist Officer exams since 2013.

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