Practice MCQ Questions and Answer on Coding and Decoding
41.
In a certain code, TWINKLE is written as SVHOJKD, then how would FILTERS be written in the same code?
(A) EHKSDQR
(B) EHKUDQR
(C) EGKUDQR
(D) GJMSFST
Solution:
Each letter in the word, except the middle letter, is moved one step backward while the middle letter is moved one step forward to obtain the corresponding letter of the code.
42.
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.
43.
If MADRAS can be written as ARSARS, how can ARKONAM be written in that code?
(A) ROAAKNM
(B) ROAKANM
(C) ROAKNNM
(D) ROAKNAM
Solution:
The word is first written twice and the letters at the even positions in the word so obtained, form the code.
44.
In a certain code, PRODUCTIONS is written as QQPCVEUHPMT. How is ORIENTATION written in that code?
(A) PQJDOVBSJNO
(B) PQJDOUBUJPO
(C) PSJFOVBSJNO
(D) NSHFMVBSJNO
Solution:
The first, third, fifth, seventh, ninth, and eleventh letters in the word are each moved one step forward; the second, fourth, eighth and tenth letters are each moved one step backward, while the middle (i.e. sixth) letter is moved two steps forward to obtain the corresponding letters of the code.
45.
In a certain code language, THANKS is written as SKNTHA. How is STUPID written in that code language?
(A) DIPUTS
(B) DISPUT
(C) DIPUST
(D) DPISTU
Solution:
Answer & Solution Answer: Option E Solution: The code is formed by first writing the last three letters of the word in a reverse order, followed by the first three letters in the same order. So, the code for STUPID should be DIPSTU.
46.
If the letters GBOQX stand for HAPPY , for which word the letters CROSS stand for ?
(A) BSPTR
(B) BSNTR
(C) BNSTR
(D) BSNRT
Solution:
GBOQX = HAPPY First letter of the word HAPPY is next letter of the first letter of the word GBOQX and second letter of the word HAPPY is the previous letter of the second letter of the word GBOQX. This order is further repeated. So, CROSS = BSNTR.
47.
If in a certain language, EXECUTIVE is coded as TCIEUXVEE, the how is MAUSOLEUM coded in that language?
(A) LSEUOAUMM
(B) AUUCOSLMM
(C) AUEUOSEMM
(D) SLUEOAUMM
Solution:
Let us label the letters of the given word from 1 to 9. Then, the code contains the letters of the word in the order 6, 4, 7, 3, 5, 2, 8, 1, 9. Thus we have : MAUSOLEUM => LSEUOAUMM 123456789 => 647352819
48.
In a certain code, TELEPHONE is written as ENOHPELET. How is ALIGATOR written in that code?
(A) ROTAGILA
(B) ROTAGAIL
(C) ROTAGILE
(D) ROTEGILA
Solution:
The letters of the word are written in a reverse order to obtain the code.
49.
In a certain code language, BEAT is written as YVZG, then what will be the code of MILD?
(A) ONRW
(B) NOWR
(C) ONWR
(D) NROW
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.
50.
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.