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Coding-Decoding Questions and Answers

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81.

In a certain code language MONKEY is written as LNMJDX. How will TIGER be written in that code ?

Answer: C

Correct answer: SHFDQ

Each letter of the original is replaced by the letter immediately before it in the alphabet: M becomes L, O becomes N, and so on throughout.

Applying the same shift to TIGER gives S, H, F, D, Q.

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82.

In a certain code, MONKEY is written as XDJMNL. How is TIGER written in that code ?

Answer: A

Correct answer: QDFHS

Two operations are combined. Reverse MONKEY to get YEKNOM, then move each letter one place back: Y→X, E→D, K→J, N→M, O→N, M→L, giving XDJMNL. TIGER reversed is REGIT, and stepping each back gives R→Q, E→D, G→F, I→H, T→S, so the code is QDFHS.

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83.

If BOMBAY is written as MYMYMY, how will TAMIL NADU be written in that code ?

Answer: B

Correct answer: MNUMNUMNU

The code is built from every third letter. BOMBAY has six letters, and taking the third and the sixth gives M and Y, written three times over as MYMYMY. TAMILNADU has nine, so the third, sixth and ninth are M, N and U, and the code is MNU repeated three times.

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84.

If air is called green , green is called blue, blue is called sky, sky is called yellow, yellow is called water and water is called pink, then what is the color of clear sky ?

Answer: B

Correct answer: Sky

The question is what the colour of a clear sky is called in this language. A clear sky is blue, and blue is called sky, so the answer is sky. It is worth reading the chain in the right direction: sky is called yellow, which answers a different question altogether.

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85.

If VICTORY is coded as YLFWRUB, how can SUCCESS be coded ?

Answer: B

Correct answer: VXFFHVV

Each letter advances three places: V→Y, I→L, C→F, T→W, O→R, R→U, Y→B, the last wrapping past Z. SUCCESS gives S→V, U→X, C→F, C→F, E→H, S→V, S→V. The repeated letters again provide the check: the two C’s must give the same letter, and so must the three S’s.

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86.

If FRIEND is coded as HUMJTK, how is CANDLE written in that code ?

Answer: A

Correct answer: EDRIRL

The shift increases along the word. FRIEND to HUMJTK is F+2, R+3, I+4, E+5, N+6, D+7. Applying the same increasing shift to CANDLE gives C+2=E, A+3=D, N+4=R, D+5=I, L+6=R, E+7=L, that is EDRIRL. A constant shift would not reproduce the example, so the differences must be worked out letter by letter.

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87.

If FRIEND is coded as HUMJTK, how is CANDLE written in that code ?

Answer: A

Correct answer: EDRIRL

The shift increases by one along the word: F+2, R+3, I+4, E+5, N+6, D+7 turns FRIEND into HUMJTK. CANDLE under the same rule gives C+2=E, A+3=D, N+4=R, D+5=I, L+6=R, E+7=L, that is EDRIRL.

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88.

If in a certain language, COUNSEL is coded as BITIRAK, how is GUIDANCE written in that code ?

Answer: B

The 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.

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89.

If DELHI is coded as 73541 and CALCUTTA as 82589662, how can CALICUT be coded ?

Answer: C

The alphabets are coded as follows :

D E L H I C A U T
7 3 5 4 1 8 2 9 6

So, in CALICUT,
C is coded as 8, 
A as 2,
L as 5,
I as 1,
U as 9   and
T as 6.
Thus, the code for CALICUT is 8251896.

 

 

 

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90.

If the letters in PRABA are coded as 27595, and THILAK are coded as 368451, how can BHARATHI be coded ?

Answer: C

The alphabets are soded as shown :

P R A B T H I L K
2 7 5 9 3 6 8 4 1

So, B is coded as 9, 
H as 6,
A as 5,
R as 7,
T as 3   and
I as 8.
Thus, the code for BHARATHI is 96575368.

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