Practice MCQ Questions and Answer on Coding and Decoding
71.
If Dust is called Air, Air is called Fire, Fire is called Water, Water is called Colour, Colour is called Rain and Rain is called Dust, where do Fish live ?
(A) Dust
(B) Fire
(C) Colour
(D) Water
Solution:
Generally, Fishes lives in Water and Water is called Colour in the code. So Fishes live in Colour.
72.
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.
73.
In a certain code language, COMPUTER is written as RFUVQNPC. How is MEDICINE written in the same code?
(A) EOJDEJFM
(B) EOJDJEFM
(C) MFEDJJOE
(D) MFEJDJOE
Solution:
Each letter of the word except the first and the last letters, is moved one step forward and then the order of the letters so obtained, is reversed to get the code.
74.
In a certain code, COMPATIBLE is written as BQNPDDKAHS. How is STABILISED written in that code?
(A) TUBCJCDRHK
(B) JCBUTEDTHM
(C) JCBUTCDRHK
(D) JCBUTEFTJM
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 one step forward while that in the second half is moved one step backward, to get the code. Thus, we have : STABILISED => STABI/LISED => IBATS/DESIL => JCBUT/CDRHK
75.
If TOUR is written in a certain code as 1234, CLEAR as 56784 and SPARE as 90847, what will be the 5th digit for SCULPTURE in the same code ?
(A) 3
(B) 4
(C) 6
(D) 0
Solution:
By, comparing letters and digit, we get T = 1 O = 2 U = 3 R = 4 C = 5 L = 6 E = 7 A = 8 S = 9 and P = 0 As the 5th letter is SCULPTURE is P and '0' is used for P, therefore, 5th digit is the required code which is '0'.
76.
If in a certain language PROSE is coded as PPOQE, how is LIGHT coded in that code ?
(A) LIGFT
(B) LGGHT
(C) LGGFT
(D) LLGFE
Solution:
In the given code PROSE = PPOQE The first, third and fifth letters are same but in the place of second and fourth letters previous two letters are used. So, LIGHT = LGGFT.
77.
1 3 4 means GOOD AND TASTY.
4 7 8 means SEE GOOD PICTURES.
7 2 9 means PICTURES ARE FAINT.
Which of the following stand for SEE ?
(A) 8
(B) 2
(C) 9
(D) 1
Solution:
1 3 4 = GOOD AND TASTY. 4 7 8 = SEE GOOD PICTURES. Hence, 4 = GOOD. (by comparing I and II.) 7 2 9 = PICTURES ARE FAINT. and 7 = PICTURES. Therefore, 8 = SEE.
78.
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.
79.
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.
80.
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.