Coding and Decoding Questions

Q:

If MADRAS can be written as NBESBT, how can BOMBAY be written in that code ?

A) CPNCBX B) CPNCBZ
C) CPOCBZ D) CQOCBZ
 
Answer & Explanation Answer: B) CPNCBZ

Explanation:

Each letter in the word is moved one step forward to obtain the corresponding letter of the code.

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202 28819
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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58 28386
Q:

If HAT is coded as 'jcv' then what will GUN be coded as?

 

A) iwp B) IKM
C) kip D) Klp
 
Answer & Explanation Answer: A) iwp

Explanation:

Here HAT is coded as jcv

=> Leaving a letter in between i.e, after H leave i write j in small letters

In the same way, A => c, T => v

Similarly for GUN => iwp 

 

 

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Q:

If green means red, red means yellow, yellow means blue, blue means orange and orange means green, what is the colour of clean sky ?

A) Blue B) Green
C) Yellow D) Orange
 
Answer & Explanation Answer: C) Yellow

Explanation:

The colour of clean sky is 'blue' and as givne, 'yellow' means 'blue'.

so, the colour of clear sky is 'yellow'.

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205 24503
Q:

If train is called bus, bus is called tractor, tractor is called car, car is called scooter, scooter is called bicycle, bicycle is called moped, which is used to plough a field ?

A) Train B) Bus
C) Tractor D) Car
 
Answer & Explanation Answer: D) Car

Explanation:

A 'tractor' is used to plough a field.

But a 'tractor' is called 'car'.
So, a 'car' will be used to plough the field.

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83 22915
Q:

If 'L' stands for '+' , 'M' stands for '-' , N stands for 'x' , P stands for '÷' then

14 N 10 L 42 P 2 M 8 = ?

A) 153 B) 216
C) 248 D) 251
 
Answer & Explanation Answer: A) 153

Explanation:
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Q:

In a certain code language STUDENT is written as TUTDNES.How will SOURCES be writte in that code language?

A) SOURCES B) SUORECS
C) SRUOCES D) SOURSEC
 
Answer & Explanation Answer: B) SUORECS

Explanation:

- There are 7 letters in the word

- The middle letter has been left intact

- The first and the last letters  of the word have interchanged their position. Similarly, the second and the third letters and the fifth and sixth letters have interchanged their position.

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139 20984
Q:

If E = 5 and READ is coded as 7, then what is the code of 'DEAR' ?

A) 6 B) 7
C) 8 D) 9
 
Answer & Explanation Answer: B) 7

Explanation:

Here E = 5 = 5/1 = 5

=> READ = 18 + 5 + 1 + 4 = 28/4 = 7

=> DEAR = 4 + 5 + 1 + 18 = 28/4 = 7

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