Coding and Decoding Questions & Answers : Logical Reasoning

  • 1. In a certain code IMTITJU is written as TMIIUJT. How is TEMREMP written in that code?
A.) METERPM
B.) METRPME
C.) ETRMMEP
D.) MTERPME

Answer: Option 'B'

In the given code, the letters of even numbered position have been left as they as they are while the first and the third letters have been interchanged. Similarly, the fifth and the seventh letters have been interchanged.

  • 2. In a certain code 'INACTIVE' is written as VITCANIE. How is 'COMPUTER' written in that code?
A.) UTEPMOCR
B.) MOCPETUR
C.) ETUPMOCR
D.) PMOCRETU

Answer: Option 'C'

There are 8 letters in the word. 
In the given code the fourth and the eighth letters from left have been left intact.
The first letter exchanges position with the seventh letter, the second letter with
the sixth letter and the third with the fifth letter..

  • 3. In a certain code STUDENT is written as TUTDNES. How will SOURCES be written in that code?
A.) SOURCES
B.) SUORECS
C.) SRUOCES
D.) SOURSEC

Answer: Option 'B'

There are 7 letters in the word. 
The middle letter (4th) has been left intact. 
The first and the last letters of the word have interchanged their position.
Similarly, the second and the thisrd letters and he fifth and the sixth letters have
interchanged their position.

  • 4. In a certain code LEARNING is written as LGNINRAE. How will SURPRISE be written in that code?
A.) ESRIPRUS
B.) RUSEPSIR
C.) SESIRPRU
D.) ESIRPRSU

Answer: Option 'C'

There are 8 letters in word. 
The first letter of the word has been left intact.
The order of remaining letters has been reversed.

  • 5. If PRIVATE is coded as 1234567 and RISK is coded as 2398, how is RIVETS coded?
A.) 232679
B.) 243769
C.) 234769
D.) 234976

Answer: Option 'C'

PRIVATE --> 1234567 
RISK --> 2398 
RIVETS --> 2 3 4 7 6 9