Must become instant.

Letter	Position
A	1
B	2
C	3
D	4
E	5
F	6
G	7
H	8
I	9
J	10
K	11
L	12
M	13
N	14
O	15
P	16
Q	17
R	18
S	19
T	20
U	21
V	22
W	23
X	24
Y	25
Z	26

---

Important Anchor Letters

Memorize:

A = 1
E = 5
J = 10
M = 13
N = 14
R = 18
T = 20
Z = 26

Most questions can be solved using these anchors.

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OPPOSITE LETTERS

Very frequently asked.

A ↔ Z
B ↔ Y
C ↔ X
D ↔ W
E ↔ V
F ↔ U
G ↔ T
H ↔ S
I ↔ R
J ↔ Q
K ↔ P
L ↔ O
M ↔ N

Shortcut

Position Sum = 27

Examples:

A + Z = 27
F + U = 27
M + N = 27

---

LETTER JUMP VALUES

A → B = +1
A → C = +2
A → D = +3
A → E = +4

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2. LETTER SERIES

Pattern 1: Constant Gap

A C E G I ?

Gap:

+2

Answer:

K

---

Pattern 2: Increasing Gap

A C F J O ?

Gaps:

+2
+3
+4
+5

Next:

+6

Answer:

U

---

Pattern 3: Reverse

Z X V T ?

Gap:

-2

Answer:

R

---

Pattern 4: Alternate

A D C F E H G ?

Split into alternate terms:

1st, 3rd, 5th, 7th:
A C E G

2nd, 4th, 6th, 8th:
D F H ?

Pattern:

+2

Therefore:

H → J

Answer:

J

---

LETTER SERIES APPROACH

Always check:

+1
+2
+3

-1
-2
-3

Alternate Terms

Opposite Letters

Position Pattern

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3. NUMBER SERIES

Most important topic.

Pattern 1: Constant Difference

2 5 8 11 14 ?

Difference:

+3

Answer:

17

---

Pattern 2: Increasing Difference

2 5 9 14 20 ?

Differences:

3
4
5
6

Next:

7

Answer:

27

---

Pattern 3: Multiplication

3 6 12 24 48 ?

Rule:

×2

Answer:

96

---

Pattern 4: Multiplication + Addition

2 5 11 23 47 ?

Rule:

×2 +1

Answer:

95

---

Pattern 5: Squares

Memorize:

1² = 1
2² = 4
3² = 9
4² = 16
5² = 25
6² = 36
7² = 49
8² = 64
9² = 81
10² = 100
11² = 121
12² = 144
13² = 169
14² = 196
15² = 225
20² = 400
25² = 625
30² = 900

---

Pattern 6: Cubes

Memorize:

1³ = 1
2³ = 8
3³ = 27
4³ = 64
5³ = 125
6³ = 216
7³ = 343
8³ = 512
9³ = 729
10³ = 1000

---

Pattern 7: Prime Series

Memorize:

2
3
5
7
11
13
17
19
23
29
31
37
41
43
47

Remember:

2 is the only even prime number.

---

Pattern 8: Fibonacci

0
1
1
2
3
5
8
13
21
34
55

Rule:

Each term = Sum of the previous two terms.

---

Pattern 9: Alternate Pattern

2 8 4 16 8 32 ?

Split:

2 4 8

8 16 32

Answer:

16

---

NUMBER SERIES CHECKLIST

Whenever stuck, check in this order:

1. Difference

2. Second Difference

3. Ratio

4. Mixed Operations
   (×, ÷, +, − combinations)

5. Squares

6. Cubes

7. Prime Numbers

8. Fibonacci Pattern

9. Alternate Terms

10. Position Pattern

Follow this order every time.

---

4. CODING DECODING

Type 1: Letter Shift

CAT → DBU

Rule:

+1

Explanation:

C → D
A → B
T → U

---

Type 2: Reverse Shift

DOG → CNF

Rule:

-1

Explanation:

D → C
O → N
G → F

---

Type 3: Opposite Coding

A → Z
B → Y
C → X

Example:

CAT

C → X
A → Z
T → G

Answer:

XZG

---

Type 4: Position Sum Coding

Example:

CAT

Positions:

C = 3
A = 1
T = 20

Sum:

3 + 1 + 20 = 24

Answer:

24

---

Type 5: Word Reversal

APPLE

ELPPA

Very common.

---

Coding Shortcut

Always check:

Letter Shift

Number Shift

Reverse Alphabet

Position Values

Word Reversal

Odd-Even Pattern

---

5. ANALOGY

Question:

Doctor : Hospital

Find the same relation.

---

Common Relations

Person → Workplace

Doctor : Hospital

Teacher : School

---

Country → Capital

India : New Delhi

Japan : Tokyo

---

Part → Whole

Wheel : Car

Page : Book

---

Tool → User

Pen : Writer

Brush : Painter

---

Cause → Effect

Rain : Flood

Fire : Smoke

---

Analogy Rule

Ask:

What relation exists between the first pair?

Apply the same relation to find the answer.

---

6. ODD MAN OUT

Check Prime Numbers

2
3
5
7
9

Answer:

9

---

Check Squares

4
9
16
25
27

Answer:

27

---

Check Cubes

8
27
64
125
100

Answer:

100

---

Check Alphabet Position

A
C
E
G
J

Positions:

A = 1
C = 3
E = 5
G = 7
J = 10

The first four follow odd positions (+2).

Answer:

J

---

Check Category

Tiger
Lion
Leopard
Cow

Answer:

Cow

---

7. LOGICAL SEQUENCE OF WORDS

Arrange in natural order.

Human Life

Infant
Child
Teenager
Adult
Old Age

---

Education

School
College
Employment
Promotion
Retirement

---

Plant Growth

Seed
Sprout
Plant
Tree
Fruit

---

Business Process

Idea
Investment
Production
Sales
Profit

---

FINAL 5-MINUTE REVISION BOX

A = 1 to Z = 26

Opposite Letter Positions Sum = 27

Anchor Letters:
A=1, E=5, J=10, M=13,
N=14, R=18, T=20, Z=26

Squares: 1² to 30²

Cubes: 1³ to 10³

Prime Numbers up to 50
(2 is the only even prime)

Fibonacci Sequence

Series Detection Order:
Difference
→ Second Difference
→ Ratio
→ Mixed Operations
→ Squares
→ Cubes
→ Primes
→ Fibonacci
→ Alternate Terms
→ Position Pattern

Coding-Decoding Checks:
Letter Shift
Number Shift
Reverse Alphabet
Position Values
Word Reversal
Odd-Even Pattern

Analogy Relations:
Person–Workplace
Country–Capital
Part–Whole
Tool–User
Cause–Effect

Odd-One-Out Checks:
Prime
Square
Cube
Alphabet Position
Category
Pattern Break