Aptitude Chapter-1

Bodhak tutorial of competitive bank exams letter series and number series contains the detailed explanation along with examples and shortcuts.


For Higher Education Competitive Exams like:

GATE: Graduate Aptitude Test in Engineering

CAT: Common Admission Test etc..

For Job Aspirants After completion of Graduation for Example:

Campus placement programs (or) Campus recruitment training

BANK Exams

Groups Exams etc…


competitive bank exams letter series


There are three models in letter series

1)Pair Letters

2)A – Z (Forward)

3)Z – A (Reverse)

Pair letters:

A   B   C    D   E   F   G   H   I    J    K   L   M

Z   Y   X   W   V   U   T   S   R   Q   P  O   N


The Pair Of A is Z & M is N

Tips to remember

B   –  Y  (Boy, Bye)

C  –  X  (Six)

D  –  W  (Do Work)

F  –  U  (Full, For You, Fun)

H  –  S  (He, She or High school)

I  –  R  (Indian railways)

J  –  Q

K  –  P  (

LOVE  ( LO / VE )

G  –  T   ( Grand trunk)

A – Z (Forward):

A=1 B=2 C=3 D=4 E=5………..Z=26


To remember the forward order the following is the best method

If  you remember E=5

Default you remember A=1,B=2,C=3,D=4

Remember the following:

E    J      O     T      Y

5   10   15   20   25

By This, you can remember any alphabet  equivalent number from A-Z

Z – A (Reverse):

A=26 B=25 C=24 D=23 E=22…….Z=1.

Tips :

vTotal No of Alphabets + 1 = 27

A = 27 – 1 = 26

I = 27 – 9 = 18


pair the alphabet

A = Z =26 and I = R =18


There are many types in number series like difference, squares, cubes, prime numbers, increasing, decreasing etc.


This Competitive Exam tutorial is very useful for preparation of bank exams. Nowadays almost all major and medium level companies are conducting aptitude exam before any recruitment drive. this tutorial also helpful for the students who are planning for the higher education they can use for the preparation of GATE, GRE etc..