coding and decoding MCQ Practice

 coding and decoding MCQ Practice

1. If SUMMER is coded RUNNER, the code for WINTER is

A. SUITER

B. VIOUER

C. WALKER

D. SUFFER

In the given code, second, fifth and sixth letters are same. The first letter of the word (S → R) is moved one step backward, while the two middle letters (M → N and M → N) each moved one step forward to obtain the corresponding letters of the code. So,

WINTER = VIOUER. 

2. 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    

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.   

  

3. 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       

 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'.    

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

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.