Coding-Decoding MCQ | Logical Reasoning

If BOOK is coded as CPPL, how is PEN coded?
a) QFO
b) QDO
c) ODM
d) QEN

b) QDO
Explanation: Each letter is shifted by +1, -1, +1 pattern. P(+1)=Q, E(-1)=D, N(+1)=O.

In a certain code, CAT is written as DBU. How is DOG written?
a) EPH
b) FQH
c) EPF
d) FPG

a) EPH
Explanation: Each letter is shifted by +1. D→E, O→P, G→H.

If APPLE is coded as BQQMF, what is the code for ORANGE?
a) PSBOHF
b) PSBPIF
c) QTCOHF
d) PSBOHG

a) PSBOHF
Explanation: Each letter is shifted by +1. O→P, R→S, A→B, N→O, G→H, E→F.

In a code language, if MATH is written as NBSI, how is TEST written?
a) UFTU
b) UFST
c) VFTU
d) UFSU

a) UFTU
Explanation: Each letter is shifted by +1. T→U, E→F, S→T, T→U.

If ZEBRA is coded as YDAZQ, how is LION coded?
a) KHPM
b) KHNM
c) LHPN
d) KHON

a) KHPM
Explanation: Each letter is shifted by -1. L→K, I→H, O→N, N→M.

In a certain code, FISH is written as EHRG. How is BIRD written?
a) AHQC
b) AISC
c) BIRC
d) AHRC

a) AHQC
Explanation: Each letter is shifted by -1. B→A, I→H, R→Q, D→C.

If COMPUTER is coded as DPNQVUFS, what is the code for LAPTOP?
a) MBQUQP
b) MBQUPO
c) NCQUQP
d) MBQUPQ

a) MBQUQP
Explanation: Each letter is shifted by +1. L→M, A→B, P→Q, T→U, O→P, P→Q.

If MONDAY is coded as NPOEBZ, how is FRIDAY coded?
a) GSJEBZ
b) GSJECA
c) HSJEBZ
d) GTJEBZ

a) GSJEBZ
Explanation: Each letter is shifted by +1. F→G, R→S, I→J, D→E, A→B, Y→Z.

In a code, KINGDOM is written as JHMFCLN. How is QUEEN coded?
a) PTFDM
b) PTDFO
c) QTFDM
d) PTFDN

a) PTFDM
Explanation: Each letter is shifted by -1. Q→P, U→T, E→D, E→D, N→M.

If SUCCESS is coded as TVDDFTT, what is the code for WINNER?
a) XJOOFS
b) XJOOFQ
c) YJOOFS
d) XJNPFS

a) XJOOFS
Explanation: Each letter is shifted by +1. W→X, I→J, N→O, N→O, E→F, R→S.