Coding-Decoding Questions and Answers

Answer: B

The alphabets are coded as shown :

So, in SEARCH,
S ia coded as 2,
E as 1,
A as 4,
R as 6,
C as 7,
H as 3.
Thus, the code for SEARCH is 214673.

Answer: C

In statements A and B, the common code word is 'na' and the common word is 'water'.

So, 'na' means 'water'.

In statements B and D, the common code word is 'jo' and the common word is 'life'.
So, 'jo' means 'life'.
Thus, in statements B, 'tod' represents 'is'.

Answer: A

Correct answer: CHRONRD

Each letter moves one place back: T→S, R→Q, I→H, P→O, P→O, L→K, E→D. DISPOSE therefore becomes D→C, I→H, S→R, P→O, O→N, S→R, E→D, giving CHRONRD. Checking the double letters is the quickest test: the two P’s in TRIPPLE both became O, so the two S’s of DISPOSE must both become R.

Answer: A

The alphabets are coded as shown :

So, In TWELVE ,
T is coded as 8,
W as 6,
E as 3,
L as 2,
V as 0.
Thus, the code for  TWELVE is 863203.

Answer: A

Correct answer: EOJDJEFM

Reverse COMPUTER to RETUPMOC, then advance every letter by one except the first and last, which stay as they are: R, E→F, T→U, U→V, P→Q, M→N, O→P, C. That gives RFUVQNPC. MEDICINE reversed is ENICIDEM; keeping the E and the M and advancing the six between them gives E, N→O, I→J, C→D, I→J, D→E, E→F, M, so the code is EOJDJEFM.

Answer: D

In the first and second statements, the common code digit is '4' and the common word is 'good'.

So, '4' stands for 'good'.
In the second and third statements, the  common code digit is '7' and the common word is 'pictures'.
So, '7' means 'pictures'.
Thus, in the second statements, '8' means 'see'.

Answer: B

The alphabets are soded as shown :

So, P is coded as 2,
E as 4,
A as 1,
R as 5   and
L as 3.
Thus, the code for PEARL is 24153.

Answer: C

he letters at odd positions are each moved one step backward, while the letters at even positions are respectively moved six, five, four, three, two,... steps backward to obtain the corresponding letters of the code.

Answer: B

Explanation:
In the given word, we can analyse that,
M is decreased by 1, M-1 = L, and other words are interchanged,

EN - NE
TI - IT
ON - NO

So, 
PATTERN will be

P -1 O
AT - TA
TE - ET
RN - NR

Answer: C

Correct answer: Yellow

The question asks what the sky would be called in this language, not what it is called in ours. A clear sky is blue, and the list says yellow means blue - so blue is what these speakers call yellow. Reading the substitution the wrong way round gives orange, which is what blue means rather than what means blue.