Practice MCQ Questions and Answer on Coding and Decoding
21.
If in a certain language, MIRACLE is coded as NKUEHRL, then how is GAMBLE coded in that language?
(A) JDOCMF
(B) CLEMNK
(C) HCPFQK
(D) AELGMN
Solution:
The first, second, third, fourth, fifth, sixth and seventh letters in the word are moved one, two, three, four, five, six and seven steps forward respectively to obtain the corresponding letters of the code.
22.
If SPIDER is written as PSDIRE in a certain code, how would COMMON be written in that code?
(A) OCOMMO
(B) OCMMNO
(C) OCMOMN
(D) OCMMON
Solution:
The word is divided into groups of two letters each and then the letters of each group are written in a reverse order.
23.
In a certain code, KAVERI is written as VAKIRE. How is MYSORE written in that code?
(A) EROSYM
(B) SYMROE
(C) SYMEOR
(D) SMYERP
Solution:
Answer & Solution Answer: Option E Solution: The letters in the first half and second half of the word are written in the reverse order to obtain the code. Thus, we have : MYSORE => MYS/ORE => SYM/ERO => SYMERO.
24.
In a certain code FIRE is coded as DGPC. What will be the last letter of the coded word for SHOT.
(A) Q
(B) R
(C) S
(D) P
Solution:
D is used for F. G is used for I. P is used for R. and C is used for E. Thus, it is clear that each letter of the word FIRE stands for each corresponding letter of the coded word DGPC two places ahead. By applying the same principle, the letters QFMR will stand for SHOT. Hence, the last letter of the coded word is R.
25.
If TOUR is coded as 1234, CLEAR is coded 56784 and SPARE as 90847, how will the word SCULPTURE be coded ?
(A) 953601347
(B) 567903417
(C) 953016347
(D) 953603741
Solution:
T = 1 O = 2 U = 3 R = 4 C = 5 L = 6 E = 7 A = 8 S = 9 P = 0. Hence, SCULPTURE = 953601347
26.
In a certain code language, STREAMLING is written as CGTVUHOJMN. How will the word PERIODICAL be written in that language?
(A) PJSFQMBDJE
(B) PJSFQMNBJE
(C) QKTGRMBDJE
(D) QKTGRMCEKF
Solution:
The letters in the first half and second half of the word are written in the reverse order and in the group of letters so obtained, each letter in the first half is moved two steps forward while that in the second half is moved one step forward, to get the code. Thus, we have: PERIODICAL => PERIO/DICAL => OIREP/LACID => QKTGR/MBDJE.
27.
If in a certain code, CERTAIN is coded as XVIGZRM, SEQUENCE is coded as HVJFVMXV, then how would MUNDANE be coded?
(A) NFMWZMX
(B) NFMWZMV
(C) NFMXZMV
(D) None of these
Solution:
Each letter in the word is replaced by the letter which occupies the same position from the other end of the alphabet, to obtain the code.
28.
In a certain language, WEAK is coded as 9%2$ and SKIT is coded as #$7@, then how will WAIT be coded in the same language?
(A) 9267
(B) 927@
(C) 92@6
(D) 9@67
Solution:
W → 9 E → % A → 2 K → $ S → # I → 7 T → @ So, WAIT = 927@
29.
In a certain code, BROUGHT is written as SGFVAQN. How is SUPREME written in that code?
(A) DLDSTVQ
(B) DLDSRTO
(C) FNFSRTO
(D) RTOSDLD
Solution:
The last four letters of the word are written in the reverse order, followed by the first three letters in the same order. In the group of letters so obtained, each letter except the middle letter is moved one step backward while the middle letter is moved one step forward to get the code. Thus, we have : SUPREME => SUP/REME => EMER/SUP => DLD/SRTO.
30.
In a certain code, CONVENTIONAL is written as NOCNEVOITLAN. How is ENTHRONEMENT written in that code?
(A) TNEROHEMNTNE
(B) TNEROHEMNNTE
(C) TNEORHMENTNE
(D) NTEROHEMNNTE
Solution:
The word is divided into groups of three letters each and then the letters in each group are written in a reverse order.