Comprehension - Alphabets
Introduction
Comprehension of the English Alphabet focuses on identifying the specific positions and mathematical properties of letters from A to Z.
Explanation Step by Step
Refer to the table below for alphabet ranking from both directions:
| Letter | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Forward (Left to Right) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 |
| Backward (Right to Left) | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
Sub-topics
Alphabet Properties
- Even Numbered Letters: B, D, F, H, J, L, N, P, R, T, V, X, Z
- Odd Numbered Letters: A, C, E, G, I, K, M, O, Q, S, U, W, Y
- Prime Numbered Letters: B, C, E, G, K, M, Q, S, W
- Square Numbered Letters: A, D, I, P, Y
Examples
Example 1
Which letter is exactly midway between F and R?
F is 6, R is 18. Midway = (6+18)/2 = 12. 12th letter is L.
Answer: L (Option 1)
Tricks and Shortcuts
Remember 'EJOTY' for positions 5-10-15-20-25 to locate letters instantly.
Common Mistakes
Don't confuse the letter's position from the left with its position from the right. Always check if the question asks "from the start" or "from the end".
Practice Questions
Easy Questions
- What is the 10th letter from the left?
- Which letter comes after T?
- Identify the letter with position number 1.
Medium Questions
- Which letter has a square number position and comes after J?
- Find the letter midway between D and P.
- What is the 5th letter from the right?
Hard Questions
- How many prime numbered letters are there between J and T?
- Which letter is 4th to the left of the 18th letter from the end?
- List all letters whose positions are both odd and square numbers.
Revision Summary
Knowing square and prime positions of letters helps solve logical reasoning patterns faster.