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Coding-Decoding Questions and Answers

Important Instructions
61.

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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62.

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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63.

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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64.

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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65.

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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67.

If in a certain language if ENTRY is coded as 12345 and STEADY is coded as 931785, then state which is correct code for below word. ENDEAR

Answer: C

The alphabets are soded as shown :

 

E N T R Y S A D
1 2 3 4 5 9 7 8

E is coded as 1,
N as 2,
D as 8,
A as 7   and
R as 4.
So, ENDEAR is coded as 128174.

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68.

In a certain code language COMPUTER is written as RFUVQNPC. How will MEDICINE be written in that code language?

Answer: D

There are 8 letters in the word.

- The coded word can be obtained by taking the immediately following letters of word, expect the first and the last letters of the given word but in the reverse order. That means, in the coded form the first and the last letters have been interchanged while the remaining letters are coded by taking their immediate next letters in the reverse order.

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69.

If in a certain language, MADRAS is coded as NBESBT, how is BOMBAY coded in that code ?

Answer: B

Correct answer: CPNCBZ

Each letter moves one place forward: M→N, A→B, D→E, R→S, A→B, S→T. Applying the same shift to BOMBAY gives B→C, O→P, M→N, B→C, A→B, Y→Z. The last letter is the one to watch: Y wraps round to Z, and the options differ chiefly in whether that step was taken.

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70.

In a certain code, a number 13479 is written as AQFJL and 5268 is written as DMPN. How is 396824 wriitten in that code ?

Answer: B

In the given codes, the numbers are coded as shown :
 

1 3 4 7 9 5 2 6 8
A Q F J L D M P N

i.e., 3 as Q,
9 as L,
6 as P,
8 as N,
2 as M  and
4 as F.
So, 396824 is coded as QLPNMF.

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