Coding and Decoding Questions

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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509 34064
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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325 17831
Q:

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

A) EDRIRL B) DCQHQK
C) ESJFME D) DEQJQM
 
Answer & Explanation Answer: A) EDRIRL

Explanation:

The first, second, third, fourth, fifth and sixth letters of th word are respectively moved two, three, four, five, six and seven steps forward to obtain the corresponding letters of the code.

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188 15078
Q:

If ROSE is coded as 6821, CHAIR is coded as 73456 and PREACH is coded as 961473, what will be the code for SEARCH ?

A) 246173 B) 214673
C) 214763 D) 216473
 
Answer & Explanation Answer: B) 214673

Explanation:

 The alphabets are coded as shown :

 

R O SE C H A I P6  8  2  1  7 3  4 5 9

 

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

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154 13470
Q:

If Z = 52 and ACT = 48, then BAT will be equal to

A) 39 B) 41
C) 44 D) 46
 
Answer & Explanation Answer: D) 46

Explanation:

In the given code, A = 2, B = 4, C = 6,.... , Z = 52.

So, ACT = 2 + 6 + 40 = 48 and

BAT = 4 + 2 + 40 = 46

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302 12592
Q:

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

A) SHFDQ B) HFDSQ
C) RSAFD D) QDFHS
 
Answer & Explanation Answer: D) QDFHS

Explanation:

The letter of the word are written in a reverse order and then each letter is moved one step backward to obtain the code.

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94 11533
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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391 10551
Q:

If Z= 2197 and R= 729. How would J be written in that code?

A) 216 B) 124
C) 512 D) 125
 
Answer & Explanation Answer: D) 125

Explanation:

Z Code2626213133 =2197

R Code 181829 93 =729

Similarly, J Code 10102553=125

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153 10395