# Number Series Tricks, Questions and Videos

## Arithmetic-Geometric (A-G) Series

The series is formed by combination of arithmetic progressions. Each succeeding term is obtained by first adding ( or subtracting) the common difference of its AP to the previous term and then multiplying (or dividing) the sum by common ratio of its GP. An important property of such an A-G series is that the difference of successive terms is in GP.

For example: 1, 8, 22, 50, 106, 218
Series is obtained by adding 3 to previous term and then multiplying the sum by 2.
i.e a2=(a1+3)×2

## Geometric Arithmetic (G-A) Series

Each succeeding term in G-A series is funded by first multiplying(or dividing)
the previous term by the common ratio of its GP and then adding (or subtracting) to it the common difference of its AP. This important property of G-A series, like A-G series, is that the difference of its successive terms are in geometric progression.

For example: 1, 2, 6, 22, 86, 342,..
The terms in the above series are obtained by fist multiplying the previous term by 4 and then subtracting 2 from the resultant product.

## Twin Series

As the name suggests, it consists of two series combined into a single series. The alternating terms of this series form an independent series.

For example: 2, 3, 7, 9, 12, 27, 17, 81, 22, 243…..
Odd terms of the series 2, 7, 12, 22,…… is an arithmetic series with common difference 5. Even terms of the series 3, 9, 27, 81, 243….. is a geometric series with common ratio 3.

## Latest Jobs

1. Type
Job
Indian Institute of Technology Hyderabad Recruitment of 152 JE, Engineer, Library Assistant, MTS - Last Date 17-02-2020
Location
Date Posted
6 Feb 2020
2. Type
Job
SBI Recruitment of 100 Specialist Officers - Last Date 12-02-2020
Location
Anywhere
Date Posted
4 Feb 2020
3. Type
Job
INDIAN Bank Recruitment 138 Specialist Officers - Last Date - 10-02-2020
Location
Anywhere
Date Posted
3 Feb 2020
4. Type
Job
KVIC Recruitment of 108 Group-B and Group-C categories - Last Date 19-01-2020
Location
MumbaiMaharashtra, India
Date Posted
7 Jan 2020
5. Type
Job
SAIL Durgapur Steel Plant Recruitment of Manager, Technician, Medical Service Provider - 27-01-2020
Location
DurgapurWest Bengal, India
Date Posted
7 Jan 2020
6. Type
Job
Indian Coast Guard Recruitment 260 Navik - Last Date 02-02-2020
Location
Anywhere
Date Posted
7 Jan 2020
7. Type
Job
IOCL hiring 312 Apprentices - Last Date 22-01-2020
Location
Anywhere
Date Posted
7 Jan 2020
8. Type
Job
RBI Recruitment NEWS for 926 Assistants - Last Date 16-01-2020
Location
Anywhere
Date Posted
7 Jan 2020
9. Type
Job
Janki Devi Memorial College Recruitment 71 Assistant Professor - Last Date 04-01-2020
Location
DelhiDelhi, India
Date Posted
2 Jan 2020
10. Type
Job
NPCIL Recruitment of Trainee, Electrician, Fitter, Machinist, Welder, Driver - Last Date 21-01-2020
Location
RawatbhataRajasthan, India
Date Posted
2 Jan 2020

## 3 Responses to “Number Series Tricks, Questions and Videos”

1. Comment made by Sohan on Mar 20th 2019 at 12:32 am: Reply

sohanchopra213@gmail.com

2. Comment made by Showkat Bashir on Dec 11th 2019 at 3:42 pm: Reply

Send me reasoning,arthamatic, comprehension at my email id princeshowkat786@gmail.com

3. Comment made by Barinaadaa on Feb 17th 2020 at 10:45 am: Reply

Send me reasoning arithmetic and comprehension at my email james2link@yahoo.com