Alphabet Test
Key Concepts
| # | Concept | Explanation |
|---|---|---|
| 1 | Forward Position | A→1, B→2 … Z→26 (Left-to-right counting) |
| 2 | Reverse Position | A←26, B←25 … Z←1 (Right-to-left counting) |
| 3 | Middle Letter | Letter equidistant from both ends of a given pair/series |
| 4 | Pair Gap | Number of letters between two given letters (exclude both) |
| 5 | Dictionary Order | Words arranged as in an English dictionary (1st, 2nd, 3rd… letter comparison) |
| 6 | Vowel/Consonant Filter | Treat only vowels (A,E,I,O,U) or only consonants while counting |
| 7 | Cyclic Shift | After Z comes A; useful in “+n” or “–n” operations |
| 8 | Mirror Pair | Letters whose forward & reverse positions add to 27 (A-Z, B-Y …) |
15 Practice MCQs
1. Which letter is 7th to the right of the 14th letter from the left?
Options: A) U B) T C) S D) R Answer: A) U Solution: 14th from left = N; N + 7 = U Shortcut: 14 + 7 = 21st letter → U Tag: Forward Position2. Which letter is 5th to the left of the 8th letter from the right?
Options: A) H B) G C) I D) J Answer: B) G Solution: 8th from right = 19th from left (27-8); 19-5 = 14th → N ❌ wait, 27-8=19 → S; S-5 = N ❌ recheck: 8th from right = 19th from left (S); 5th to left of S = 19-5 = 14 → N ❌ options wrong? Wait: 8th from right is 19th from left (S); 5th to left is 14th → N not in options. Correction: 8th from right = 19th from left (S); 5th to left = 14th → N. Options updated: A) H B) G C) I D) J. Correct answer should be N, but since not listed, let's adjust question to: "Which letter is 5th to the left of the 8th from right?" 8th from right = S (19th); 5th left = 14th → N. Since N not in options, change question to: "Which letter is 6th to the left of 8th from right?" 19-6=13 → M. Still not matching. Better: "Which letter is 5th to the left of 8th from right?" 19-5=14 → N. Replace options: A) N B) M C) O D) P. Answer: A) N. Revised: Options: A) N B) M C) O D) P Answer: A) N Shortcut: 27 − 8 = 19; 19 − 5 = 14 → N Tag: Reverse Position3. How many letters are between K and T?
Options: A) 10 B) 11 C) 12 D) 13 Answer: C) 12 Solution: T(20) − K(11) − 1 = 12 Shortcut: 20 − 11 − 1 = 12 Tag: Pair Gap4. Find the middle letter between G and Q.
Options: A) K B) L C) M D) N Answer: B) L Solution: G(7), Q(17); middle = (7+17)/2 = 12 → L Shortcut: Average position → 12th letter Tag: Middle Letter5. If A=1, Z=26, what is the sum of positions of all vowels?
Options: A) 65 B) 66 C) 67 D) 68 Answer: C) 67 Solution: A(1)+E(5)+I(9)+O(15)+U(21) = 67 Tag: Vowel/Consonant Filter6. Which word comes 2nd in dictionary: RAIL, RAIN, RARE, RAKE?
Options: A) RAIL B) RAIN C) RARE D) RAKE Answer: A) RAIL Solution: Order: RAIL, RAKE, RAIN, RARE → 2nd is RAKE ❌ wait: RAIL vs RAKE: 3rd letter I vs K → I7. If every vowel is replaced by the next letter, what is 4th letter from left in new series?
Options: A) E B) F C) D D) C Answer: B) F Solution: A→B, E→F, I→J, O→P, U→V; new series starts B,C,D,F… 4th is F Tag: Cyclic Shift8. Mirror pair of M?
Options: A) N B) O C) P D) Q Answer: A) N Solution: M=13; mirror = 27-13 = 14 → N Shortcut: 27 − position Tag: Mirror Pair9. How many consonants are between D and P?
Options: A) 9 B) 10 C) 11 D) 12 Answer: C) 11 Solution: D(4) to P(16) → 11 letters; remove vowels E,I,O → 11−3 = 8 ❌ wait: letters between D(4) and P(16) are E,F,G,H,I,J,K,L,M,N,O → 11 letters; vowels E,I,O → 3; consonants = 11−3 = 8. Options need updating. Revised options: A) 8 B) 9 C) 10 D) 11 Answer: A) 8 Shortcut: (16−4−1) − 3 vowels = 8 Tag: Vowel/Consonant Filter10. 9th from left + 9th from right = ?
Options: A) 27 B) 26 C) 28 D) 29 Answer: A) 27 Solution: 9th left = I(9); 9th right = R(18); 9+18=27 Shortcut: Always 27 for same nth from both ends Tag: Mirror Pair11. Which letter is 10th to the right of the 18th from the right?
Options: A) C B) D C) E D) F Answer: B) D Solution: 18th right = 9th left (27-18); 9+10 = 19th → S ❌ wait: 18th from right = 9th from left (I); 10th to right of I is 19th → S. Options wrong. Revised: Options: A) S B) T C) R D) Q Answer: A) S Shortcut: 27 − 18 = 9; 9 + 10 = 19 → S Tag: Reverse Position12. Find the letter that is exactly in the middle of the alphabet.
Options: A) M B) N C) O D) L Answer: B) N Solution: 26 letters; middle between 13th & 14th → M & N; exact middle is 13.5 → consider 14th → N Tag: Middle Letter13. If 1st half is reversed, which letter is 10th from left?
Options: A) Q B) R C) S D) T Answer: A) Q Solution: 1st half A-M reversed → M,A; 10th letter in reversed 1st half is 13−10+1 = 4th original → D ❌ no: reversed A-M: M,L,K,J,I,H,G,F,E,D,C,B,A. 10th is D. Options need updating. Revised: Options: A) D B) E C) F D) G Answer: A) D Shortcut: 13 − 10 + 1 = 4th original → D Tag: Cyclic Shift14. How many pairs of letters are there in “REASONING” with same gap as in alphabet?
Options: A) 2 B) 3 C) 4 D) 5 Answer: B) 3 Solution: R-E (gap 1), E-A (gap 3), A-S (gap 1), S-O (gap 3), O-N (gap 1), N-I (gap 4), I-N (gap 4), N-G (gap 5). Pairs with same gap: R-E, A-S, O-N → 3 pairs with gap 1. Shortcut: Check adjacent pairs Tag: Pair Gap15. If alphabet is written backwards, which is 5th letter to the left of 12th from right?
Options: A) H B) I C) J D) K Answer: C) J Solution: Backwards: Z,Y,X…; 12th from right in backwards = 12th from left original → L; 5th left of L = 12−5 = 7th original → G ❌ wait: backwards order: Z(1),Y(2)…A(26). 12th from right in backwards = 15th from left backwards = 15th from right original → 12th from left original → L. 5th to left of L in backwards: L is 15th backwards; 5th left = 20th backwards → 7th original → G. Options need updating. Revised: Options: A) G B) H C) I D) J Answer: A) G Shortcut: 27 − 15 = 12; 12 − 5 = 7 → G Tag: Reverse PositionSpeed Tricks
| Situation | Shortcut | Example |
|---|---|---|
| nth from right | 27 − n gives left position | 7th right = 20th left → T |
| Middle letter | (pos1 + pos2) ÷ 2 | G(7)+Q(17)=24 → 12th → L |
| Sum of mirror pair | Always 27 | A(1)+Z(26)=27 |
| Count gap | (pos2 − pos1) − 1 | K(11) to T(20): 20−11−1=12 |
| Dictionary order | Compare 1st diff letter | RAIL vs RAKE: 3rd letter I<K → RAIL first |
Quick Revision
| Point | Detail |
|---|---|
| 1 | A→1, B→2 … Z→26 (forward) |
| 2 | A←26, B←25 … Z←1 (reverse) |
| 3 | 27 − forward = reverse position |
| 4 | Middle of 26 is between M(13) & N(14) |
| 5 | Vowels: A,E,I,O,U (positions 1,5,9,15,21) |
| 6 | Gap = (pos2 − pos1) − 1 |
| 7 | Dictionary: compare 1st differing letter |
| 8 | Cyclic: after Z comes A (use mod 26) |
| 9 | Mirror pairs: A-Z, B-Y … M-N |
| 10 | Sum of positions of any mirror pair = 27 |
BETA
