SF Prep
08 Reasoning — Common Notes 🕒 Updated 2026-10-17
Common Notes SSC CGL · CHSL · Police · Bank · Railway Chapter 08

🔤 Alphabet Test & Dictionary Order

Letter positions, 'm-th to the right of n-th from left' type, dictionary order, word formation and letter-pair counting.

📌 1. Positions & Opposites

From left (forward)From right (backward)
A1 B2 C3 D4 E5 F6 G7 H8 I9 J10 K11 L12 M13Z1 Y2 X3 W4 V5 U6 T7 S8 R9 Q10 P11 O12 N13
N14 O15 P16 Q17 R18 S19 T20 U21 V22 W23 X24 Y25 Z26M14 L15 K16 J17 I18 H19 G20 F21 E22 D23 C24 B25 A26
  • Position from right = 27 − position from left.
  • '5th to the right of the 10th from left' = 10 + 5 = 15th = O.
  • '4th to the left of the 8th from right' = 12th from right = 15th from left = O.
💡 Memory Tip: Rule: same side (n from left, then m to the left) → subtract; opposite side (n from left, then m to the right) → add.

📌 2. Dictionary Order

  • Compare the first letter; if equal, the second, then the third…
  • A shorter word comes first if it is the start of a longer one: Car → Card → Care.
⚠️ Exam Traps:
  • Capital/small letters make no difference.

📌 3. Word Formation & Letter Pairs

  • New word from given letters: each letter may be used only as many times as in the original.
  • Letter pairs: two letters with as many letters between them in the word as in the alphabet — count both forward and backward.

📌 4. Practice MCQs

📝 Practice MCQs (prepared by SF Prep — not PYQs)
Q1. In the English alphabet, which letter is 5th to the right of the 10th letter from the left? Practice
(A) N
(B) O
(C) P
(D) E
Correct answer: (B)
10 + 5 = 15th letter = O.
Q2. Which letter is 4th to the left of the 8th letter from the right? Practice
(A) N
(B) P
(C) O
(D) W
Correct answer: (C)
8 + 4 = 12th from right = 27 − 12 = 15th from left = O.
Q3. The 19th letter of the alphabet holds which position from the right? Practice
(A) 10th
(B) 9th
(C) 7th
(D) 8th
Correct answer: (D)
27 − 19 = 8th (S).
Q4. Which word comes third in dictionary order? Card, Care, Car, Cart Practice
(A) Care
(B) Card
(C) Cart
(D) Car
Correct answer: (A)
Car, Card, Care, Cart — third is Care.
Q5. Choose the word that comes first in dictionary order: Practice
(A) Advice
(B) Admire
(C) Adopt
(D) Adult
Correct answer: (B)
Adm < Ado < Adu < Adv — Admire comes first.
Q6. Which word cannot be formed from the letters of 'TRANSPORT'? Practice
(A) PARROT
(B) SPORT
(C) SPORTS
(D) TRAP
Correct answer: (C)
TRANSPORT has only one S; SPORTS needs two.
Q7. If the alphabet is written in reverse order, which letter is 7th from the left? Practice
(A) U
(B) G
(C) S
(D) T
Correct answer: (D)
7th from left in reverse = 7th from right in normal = 27 − 7 = 20th = T.
Q8. How many letter pairs in 'MOTHER' have as many letters between them in the word as in the alphabet? Practice
(A) 1
(B) 2
(C) 3
(D) 0
Correct answer: (A)
Only M-R: in the word O, T, H, E (4) lie between, and in the alphabet N, O, P, Q (4). No other pair works.
Q9. Which letter is exactly midway between M and T in the alphabet? Practice
(A) P
(B) Between P and Q — no single letter
(C) Q
(D) R
Correct answer: (B)
M13, T20; middle 16.5 — no single letter, it lies between P(16) and Q(17).
Q10. Which letter is 6th to the right of the 11th letter from the right? Practice
(A) U
(B) J
(C) V
(D) W
Correct answer: (C)
Moving right reduces the position from the right: 11 − 6 = 5th from right = 22nd from left = V.
Q11. Arrange in dictionary order: 1. Plant 2. Planet 3. Plane 4. Plan Practice
(A) 4, 3, 1, 2
(B) 4, 2, 3, 1
(C) 3, 4, 2, 1
(D) 4, 3, 2, 1
Correct answer: (D)
Plan, Plane, Planet, Plant.
Q12. What is the position from the right of the 13th letter from the left? Practice
(A) 14th
(B) 13th
(C) 12th
(D) 15th
Correct answer: (A)
27 − 13 = 14; M is 13th from left and 14th from right.
Q13. Which word can be formed from the letters of 'EDUCATION'? Practice
(A) NATIONAL
(B) CAUTION
(C) DECODE
(D) ACTIVE
Correct answer: (B)
All letters of CAUTION (C, A, U, T, I, O, N) occur once in EDUCATION.
Q14. If the first five letters of 'ABCDEFGHIJ' are written in reverse, what is the 4th letter from the left? Practice
(A) C
(B) D
(C) B
(D) E
Correct answer: (C)
EDCBA FGHIJ — 4th from left is B.
Q15. In EJOTY, what is the position of T? Practice
(A) 21
(B) 15
(C) 25
(D) 20
Correct answer: (D)
E5, J10, O15, T20, Y25.
Q16. Which word comes last in dictionary order? Practice
(A) Moment
(B) Modern
(C) Mobile
(D) Model
Correct answer: (A)
Mob < Model < Modern < Mom — Moment is last.
Q17. If every vowel is replaced by the next letter, how is 'APPLE' written? Practice
(A) BQQMF
(B) BPPLF
(C) APPLF
(D) BPPLE
Correct answer: (B)
Only A→B and E→F; consonants unchanged.
Q18. In the second half of the alphabet (N–Z), which is the 8th letter from the left? Practice
(A) T
(B) V
(C) U
(D) H
Correct answer: (C)
Count from N14: 14 + 8 − 1 = 21 = U.
Q19. How many vowels are in the word 'REASONING'? Practice
(A) 2
(B) 3
(C) 5
(D) 4
Correct answer: (D)
E, A, O, I = 4 vowels.
Q20. Which letter comes exactly 7 letters after K? Practice
(A) R
(B) Q
(C) S
(D) D
Correct answer: (A)
K11 + 7 = 18 = R.

📝 Practice questions

Reasoning — Practice MCQs (Bilingual) Ch 8: Alphabet Test & Dictionary Order | अक्षर परीक्षण

Practice MCQs SF Prep द्वारा तैयार (PYQ नहीं)। नियम व ट्रिक्स मानक प्रतियोगी-परीक्षा पैटर्न पर आधारित।