Practice MCQ Questions and Answer on Coding and Decoding
61.
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.
62.
In a certain code, CAT is written as SATC and DEAR is written as SEARD. How would SING be written in that code?
(A) BGINS
(B) SGNIS
(C) SINGS
(D) GNISS
Solution:
The first letter of the word is moved to the last position and 'S' is placed at the beginning, to form the code.
63.
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.
64.
If HARD is coded s 1357 and SOFT is coded as 2468, what do the figures 21448 stand for ?
(A) SHOOP
(B) SHOOL
(C) SCOOL
(D) SHOOT
Solution:
H = 1 A = 3 R = 5 D = 7 S = 2 O = 4 F = 6 T = 8. Hence, 21448 = SHOOT.
65.
In a certain code language, BOARD is written as EQBNC. How will the word CLIMB be written in that language?
(A) CLJKD
(B) DKJLF
(C) DNHMB
(D) FNJRO
Solution:
The letters of the word are written in a reverse order and the group of letters so obtained, the first, third and fifth letters are each moved one step forward while the second and fourth letters are each moved one step backward to get the code.
66.
If in a certain language SISTER is coded as 535301 , UNCLE is coded as 84670 and BOY as 129 , how son is coded ?
(A) 923
(B) 524
(C) 342
(D) 872
Solution:
we have, S = 5 I = 3 T = 3 E = 0 R = 1 U = 8 N = 4 C = 6 L = 7 B = 1 O = 2 Y = 9. So, SON = 524.
67.
In a certain code, SPRING is written as UNUFRC. How will the word MOBILE be written in that code language?
(A) KQEFPA
(B) OMDGNC
(C) OMDGPA
(D) OMEFPA
Solution:
The first, third and fifth letters in the word are moved two, three and four steps forward respectively while the second, fourth and sixth letters are moved two, three and four steps backward respectively to obtain the corresponding letters of the code.
68.
If in a certain code, CORPORATIONS is written as PROCTAROSNOI, then how is JUDICIAL written in that code?
(A) IDUJLAIC
(B) UJIDLAIC
(C) UJIDICLA
(D) IDUJICLA
Solution:
The word is divided into groups of four letters each and then the letters in each group are written in a reverse order.
69.
Find the correct option for the blank space .
ÃÂÃÂ B ÃÂÃÂ
ÃÂÃÂ 6 ÃÂÃÂ
ÃÂÃÂ 8 ÃÂÃÂ
ÃÂÃÂ D ÃÂÃÂ
ÃÂÃÂ J ÃÂÃÂ
ÃÂÃÂ 14 ÃÂÃÂ
ÃÂÃÂ 17 ÃÂÃÂ
ÃÂÃÂ M ÃÂÃÂ
ÃÂÃÂ N ÃÂÃÂ
ÃÂÃÂ _ ÃÂÃÂ
ÃÂÃÂ _ ÃÂÃÂ
ÃÂÃÂ S ÃÂÃÂ
(A) 18, 23
(B) 14, 19
(C) 16, 21
(D) 15, 20
Solution:
In the right side of the question there is a gap of 7 letters between B and J and 6 numbers between 6 and 14. Similarly, there is a gap of 3 letters between J and N. Therefore 3 numbers gap after 14 is 18. In the left side of the question there is a gap of 8 letters between D and M and 6 numbers between 8 and 17. Similarly, there is a gap of 5 letters between M and S. Therefore 5 numbers gap after 17 is 23.
70.
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.