Coding and Decoding Questions

Q:

In a certain code language,

'134' means 'good and tasty';

'478' means 'see good pictures'  and

'729' means 'pictures are faint'.

Which of the following digits stands for 'see'?

A) 9 B) 2
C) 1 D) 8
 
Answer & Explanation Answer: D) 8

Explanation:

Justification: 

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'.

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1116 270408
Q:

(A)  '134' means 'you are well';

(B)  '758' means 'they go home';

(C)  '839' means 'we are home';

Which of the statements can be dispensed with while answering the above question?

A) A only B) B only
C) A or C only D) B or C only
 
Answer & Explanation Answer: A) A only

Explanation:

Justification:      

We can find the code for 'home' from the second and third statements.

For finding the code for 'they', we need the code for 'go' which cannot be determined from the given data.
Clearly, statement A is not necessary.

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380 212070
Q:

In a certain code language,

(A) ‘pit na som’ means ‘bring me water’

(B) ‘na jo tod’ means ‘water is life’

(C) ‘tub od pit’ means 'give me toy’

(D) ‘jo lin kot’ means ‘life and death’

Which of the following represents 'is' in that language ?

A) jo B) na
C) tod D) lin
 
Answer & Explanation Answer: C) tod

Explanation:

Justification:   

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'.

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790 200556
Q:

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

A) MFEDJJOE B) EOJDEJFM
C) MFEJDJOE D) EOJDJEFM
 
Answer & Explanation Answer: D) EOJDJEFM

Explanation:

- 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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2709 171761
Q:

In a certain code language, 'dom put ta' means 'bring hot food';

'put tir sop' means 'food is good'  and

'tak da sop' means 'good bright boy'.

Which of the following does mean 'hot' in that language ?

A) dom B) pul
C) ta D) Can't be determined
 
Answer & Explanation Answer: D) Can't be determined

Explanation:

Justification:      

 

We can find the code for 'food' form the first and second statements.
Now, to find the code for 'hot',
we need to the code for 'bring' which cannot be determined from the given information.

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59 171006
Q:

Coding-Decoding

If Pour is wrtten as 4156
Sware is written as 78269
Clear is written as 3@926

Then what is the code for PEARL= ?

A) 429@6 B) 4962@
C) 4692@ D) 4926@
 
Answer & Explanation Answer: D) 4926@

Explanation:

Pour - 4156 => P = 4,  r = 6

Sware - 78269 => a =  2,  e = 9

Clear - 3@926 => l = @

=> Pearl = 4926@

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98 162590
Q:

In a certain code language, '3a, 2b, 7c' means 'Truth is Eternal';

'7c, 9a, 8b, 3a' means 'Enmity is not Eternal'  and

'9a, 4d, 2b, 8b' means 'Truth does not perish'.

Which of the following means 'enmity' in that language ?

A) 3a B) 7c
C) 8b D) 9a
 
Answer & Explanation Answer: C) 8b

Explanation:

Justification:      

In the second and third statements, the common code is '9a' and the common word is 'not'.

So, '9a' means 'not'.
In the first and second statements, the common codes are '7c' and '3a' and the common words are 'is' and 'Eternal'.
So, in the second statement, '8b' means 'enmity'.

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274 150460
Q:

In a certain code language

" given  time  simple  plan " is written as ' @E4  &N4  %N5  #E6 '

" tired  solution  plant  great " is written as ' #N8  @D5  %T5  &T5 '

" sick  point  good  turn " is written as ' #K4  %D4  @N4  &T5 '

" garden  sister  phone  team " is written as ' &E5  #R6  %N6  @M4 '

Which of the following code is for ' plan ' and ' translate ' ?

A) @E8 and &N5 B) &N4 and @E9
C) @E1 and &N4 D) &N4 and @D7
 
Answer & Explanation Answer: B) &N4 and @E9

Explanation:

plan is given in first step. Total count of letters is 4 and last letter is N and ‘p’ is coded as & so Final answer will be-  &N4

We have to find 'translate' code. As we can see that this word is not given in any steps but as we know the idea of that so we can solve it.

Step I: first we will count the letters of that word that is 9, then we put digit 9 at the right end.

Step II: we will put the last letter of that word then it will like- E9

Step III: at the last step ‘t’ is coded for ‘@’(first letter of each word is coded by a specific symbol like here ‘t’ is coded for ‘@’. We can find the first coded symbol by looking at the other given words.

Answer will be - @E9

 

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