Letter Coding – Number Logic




Q) FL: BH :: RY : NU :: GM : ?


Options: A) CI  B) CL  C) CP  D) DI


Soln / āϏāĻŽāĻžāϧāĻžāύ

Observe the pattern:



  • FL → BH : [F → B (−4), L → H (−4)]

  • RY → NU : [ R → N (−4), Y → U (−4)]


So, the rule is: Each letter is shifted 4 places backward in the alphabet.  (āĻĒā§ā§°āϤāĻŋāĻŸā§‹ āφāĻ–ā§° āĻŦā§°ā§āĻŖāĻŽāĻžāϞāĻžāϤ 4 āĻ¸ā§āĻĨāĻžāύ āĻĒāĻŋāĻ›āϞ⧈ āĻ¸ā§°ā§‹ā§ąāĻž āĻšā§ˆāϛ⧇āĨ¤)


Now apply the same rule to GM: [G → C (−4), M → I (−4)]


Therefore, GM → CI


Ans / āωāĻ¤ā§āϤ⧰: A) CI

Q) BNLP : YMOK :: KGDU : ?


Options: A) PTXG  B) PTWF  C) QUWF  D) QUXG


Soln / āϏāĻŽāĻžāϧāĻžāύ


Observe the first pair: BNLP → YMOK


Using opposite letters (A ↔ Z, B ↔ Y, C ↔ X, ...)


 Letter : Opposite: B ↔ Y, N ↔ M, L ↔ O, P ↔ K


So, BNLP → YMOK


Now apply the same rule to KGDU:


 Letter : Opposite: K ↔ P, G ↔ T, D ↔ W, U ↔ F


 Therefore, KGDU → PTWF

Ans: B) PTWF


Shortcut / āϚāĻŽā§ āĻ•ā§ŒāĻļāϞ

Use the Reverse Alphabet Rule: 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


KGDU K→P, G→T, D→W, U→F PTWF


Q) SLIP = 208, DICE = 348 RICE = ? Option: A 192 B 292 C287 D 176


Soln : Let's use reverse alphabetical values: Reverse value = 27 − Alphabet Position



  • Normal: 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

  • Reverse: z, y, x, w, v, u, t, s, r, q, p, o, n, m, l, k, j, i, h, g, f, e, d, c, b, a


Check SLIP: S = 8, L = 15, I = 18, P = 11


Sum = 8 + 15 + 18 + 11 = 52


52 × 4 = 208


Check DICE: D = 23, I = 18, C = 24, E = 22


Sum = 23 + 18 + 24 + 22 = 87


87 × 4 = 348


Find RICE : R = 9, I = 18, C = 24, E = 22


Sum = 9 + 18 + 24 + 22 = 73


73 × 4 = 292


Ans: (B) 292


Q. FIGHT = 45 , VENT = 57 , TREND = ?


Option : A. 62 , B. 71 C. 56 , D. 43


Soln


FIGHT = 45


VENT = 57


TREND = ?


Ans :


FIGHT = 45


F - 6, I - 9, G -7, H - 8, T - 20


6+9+7+8+20 = 50


50-5 = 45 , Substract nos of alphabet in the word.


VENT = 57


V - 22, E - 5, N - 14, T - 20


22+5+14+20 = 61


61-4 = 57 , Substract nos of alphabet in the word.


TREND = ?


T- 20, R - 18, E - 5, N - 14, D - 4


20+18+5+14+4 = 61


61-5 = 56 , Substract nos of alphabet in the word.


Q. In a code language : CAR = 234 FAT = 256 to C = 468 then 'F' = ?  (A) 6 (B) 2 (C) 5 (4D) 4


Reason: In the code FAT = 256, the first digit corresponds to F,so F = 2.


Ans: 2