Coding And Decoding Questions And Answers - Logical Reasoning For RRB NTPC Exams

1.

If ROBUST is coded as QNATRS in a certain language, which word would be coded as ZXCMP ?

   A.) YWBLO
   B.) AWDLQ
   C.) AYDNQ
   D.) YYBNO

Answer: Option 'C'

Each letter of the word is one step ahead of the corresponding letter of the code.

2.

Which of the following words would correctly decode the word ZHOFRPH if the simple alphabet shifting code is used ?

   A.) ARTISTS
   B.) MAILING
   C.) COMPUTE
   D.) WELCOME

Answer: Option 'D'

Clearly, the given code is obtained by moving each letter of the word WELCOME three steps forward.

3.

If in a certain language, UTENSIL is coded as WVGPUKN, Which word would be coded as DMSFXG ?

   A.) BKQDVE
   B.) BKQDWE
   C.) BKQDWF
   D.) BKQEVE

Answer: Option 'A'

Each letter of the word is two steps behind of the corresponding letter of the code.

4.

In a certain language, CHAMPION is coded as HCMAIPNO, how is NEGATIVE coded in that code ?

   A.) ENAGITEV
   B.) MGAETVIE
   C.) EGAITEVN
   D.) NEAGVEIT

Answer: Option 'A'

The letters of the word are reversed in order, taking two at a time, to obtain the code.

  • Questions (15 to 20) : In a certain code

5.

Find the code word for very ?

   A.) nt
   B.) vw
   C.) pr
   D.) ab

Answer: Option 'B'

Given,
I)‘facing problem with money’ --- ‘st np cg rt’,
II) ‘money problem very serious’ --- ‘nt st np vw’,
III) ‘serious with every person’ --- ‘rt nt pr ab’,
IV) ‘facing person each day’ --- ‘cg ab no cd’.

  Common Word Common Code
From I and IV facing cg
From I, III with rt
From II, III serious nt
From III, IV person ab







Thus, the remaining words and their corresponding codes are:
"problem / money" --- "st / np"
"very" --- "vw"
"every" -- "pr"
"each / day" -- "no / cd"

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