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, TOGETHER is written as RQEGRJCT. In the same code, PAROLE will be written as,

   A.) RYPQJG
   B.) NCPQJG
   C.) RCPQJG
   D.) NCPQJC

Answer: Option 'B'

The letters at the odd positions are moved two steps backward and the letters at even positions are moved two steps forward to get the value.
So PAROLE will be NCPQJG

3.

In a certain code, PAPER is written as SCTGW. How is MOTHER written in that code ?

   A.) ORVLGW
   B.) PQXJJT
   C.) PQXKJV
   D.) PQVJGT

Answer: Option 'B'

The first, third and fifth letters of theword are respectively moved three, four and five steps forward,
while the letters at even positions are each moved two steps forward to obtain the corresponding letters of the code.

4.

If in a certain language, NATURE is coded as MASUQE, how is FAMINE coded in that code ?

   A.) FZNJME
   B.) FBMJND
   C.) FZMHND
   D.) EALIME

Answer: Option 'D'

The second, fourth and sixth letters of the words remain unchanged,
while the first, third and fifth letters are each moved one step backward to obtain the corresponding letters of the code.

5.

If the animals which can walk are called swimmers, animals who crawl are called flying, those living in water are called snakes and those which fly in the sky are called hunters, then what will a lizard be called ?

   A.) Swimmers
   B.) Flying
   C.) Hunters
   D.) Snakes

Answer: Option 'B'

Clearly, a lizard crawls and the animals that crawl are called 'flying'.
So, 'lizard' is called 'flying'.

6.

If DELHI is coded as 73541 and CALCUTTA as 82589662, how can CALICUT be coded?

   A.) 5279431
   B.) 5978213
   C.) 8251896
   D.) 8543691

Answer: Option 'C'

8251896

7.

If sky is called sea, sea is called water, water is called air, air is called cloud and cloud is called river, Then what do we drink when thirst?

   A.) Sky
   B.) Air
   C.) Water
   D.) Sea

Answer: Option 'B'

Air

8.

If COMPLETED is coded as MOCELPDET, then DIRECTION will be coded as :

   A.) RIETCENOI
   B.) RIDTCENOI
   C.) SIDTCENOI
   D.) RIDTCENOJ

Answer: Option 'C'

In given word, word is divided into three parts like
COM+PLE+TED, then these parts are written in reverse order as
MOC+ELP+DET
So DIRECTION will be DIR+ECT+ION,
which will be RIDTCENOI

9.

In a certain code, '289' means 'read from paper'; '276' means 'tea from field' and '85' means 'wall paper'. Which of the following is the code for 'paper' ?

   A.) 2
   B.) 8
   C.) 6
   D.) None of these

Answer: Option 'B'

In the first and second statements, the common digit is '2' and the common word is 'from'.
So, '2' is the code for 'from'.
In the first and third statements, the common code digit is '8' and the common word is 'paper'. 
So, '8' is the code for 'paper'. As shown above, '8' is the code for 'paper'.

10.

If in a certain language KINDLE is coded as ELDNIK, how is EXOTIC coded in that code ?

   A.) EXOTLC
   B.) CITOXE
   C.) CXOTIE
   D.) COXITE

Answer: Option 'B'

The letters of the word are written in a reverse order to obtain the code.

11.

In a code, CORNER is written as GSVRIV. How can CENTRAL be written in that code ?

   A.) GJRYVEP
   B.) GIRXVEP
   C.) GNFJKER
   D.) DFOUSBM

Answer: Option 'B'

Each letter of the word is moved four steps forward to obtain the code.

12.

In a certain code, 15789 is written as XTZAL and 2346 is written as NPSU. How is 23549 written in that code ?

   A.) PNTSL
   B.) NPTUL
   C.) NPTSL
   D.) NBTSL

Answer: Option 'C'

The numbers are coded as shown:

1 5 7 8 9 2 3 4 6
X T Z A L N P S U

i.e., 2 as N,
3 as P,
5 as T,
4 as S   and
9 as L.
So, 23549 is coded as NPTSL.

13.

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

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

Answer: Option 'A'

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

14.

In a certain code, 33946 is coded as PPOAL and 1987 is coded as ROSE. How is 94678 coded in that code ?

   A.) POALE
   B.) REAPS
   C.) ROSEP
   D.) OALES

Answer: Option 'B'

The numbers are coded as shown:

3 9 4 6 1 8 7
P O A L R S E

i.e. 9 as O,
4 as A,
6 as L,
7 as E   and
8 as S.
So, 94678 is coded as OALES.

15.

If COMPLETED is coded as MOCELPDET, then DIRECTION will be coded as :

   A.) RIETCENOI
   B.) RIDTCENOI
   C.) RIDTCENOJ
   D.) SIDTCENOI

Answer: Option 'B'

In given word, word is divided into three parts like
COM+PLE+TED, then these parts are written in reverse order as
MOC+ELP+DET
So DIRECTION will be DIR+ECT+ION,
which will be RIDTCENOI

  • Directions (22 - 24):
    In a certain code language
    (a) "im jee loo" means 'you did it',
    (b) "joo ip am" means 'how are things',
    (c) "loo sam" means 'you sing' and
    (d) "am pee joo" means 'things are sweet'.

16.

Which of the following is the code for 'how'?

   A.) joo
   B.) ip
   C.) am
   D.) Cannot be determained

Answer: Option 'B'

It is clear that 'ip' is the code for 'how'

17.

In a certain code HANGER is written as TDIMCG. How is KURESH be written in that code?

   A.) JRGQWJ
   B.) LVSFTI
   C.) MSTGUJ
   D.) MVTFUI

Answer: Option 'A'

JRGQWJ

18.

Which of the following is the code for 'it'?

   A.) im
   B.) jee
   C.) loo
   D.) Cannot be determained

Answer: Option 'D'

The code for 'it' may be either 'im' or 'jee'.

19.

If BOMBAY is written as MYMYMY, how will TAMIL NADU be written in that code ?

   A.) TIATIATIA
   B.) IATIATIAT
   C.) MNUMNUMNU
   D.) ALDALDALD

Answer: Option 'C'

The letters at the third and sixth places are repeated thrice to code BOMBAY as MYMYMY.
Similarly, the letters at the third, sixth and ninth places are repeated thrice to code TAMIL NADU as MNUMNUMNU.

20.

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

21.

In a certain code, a number 13479 is written as AQFJL and 5268 is written as DMPN. How is 396824 wriitten in that code ?

   A.) QLPNKJ
   B.) QLPNMF
   C.) QLPNDF
   D.) QLPMNF

Answer: Option 'B'

In the given codes, the numbers are coded as shown :
1   3   4   7   9   5   2   6   8
A   Q   F   J   L   D   M   P   N
i.e., 3 as Q,
9 as L,
6 as P,
8 as N,
2 as M    and
4 as F.
So, 396824 is coded as QLPNMF.

22.

If in a certan language FASHION is coded as FOIHSAN, how is PROBLEM codedin that code?

   A.) PELBORM
   B.) RPBOELM
   C.) PELBROM
   D.) PRBOELM

Answer: Option 'A'

The first and the last letters of the word remain as such and the remaining letters are written in a reverse order, to obtain the code.

23.

If JOSEPH is coded as FKOALD, then GEORGE will be coded as :

   A.) HAKNCA
   B.) CBKNCA
   C.) CALNCA
   D.) CAKNCA

Answer: Option 'D'

Each letter of the word is moved four step back to decode it.
So GEORGE will be CAKNCA

24.

In a certain code, 15789 is written as AXBTC, 2346 is written as MPDU. How is 23549 written in that code ?

   A.) MPXDT
   B.) MPADC
   C.) MPXDC
   D.) MPXCD

Answer: Option 'C'

The numbers are coded as shown:

1 5 7 8 9 2 3 4 6
A X B T C M P D U

i.e., 2 as M,
3 as P,
5 as X,
4 as D   and
9 as C.
So, 23549 is coded as MPXDC.

25.

If VICTORY is coded as YLFWRUB, how can SUCCESS be coded ?

   A.) VYEEHVV
   B.) VXFFHVV
   C.) VXEEIVV
   D.) VYEFIVV

Answer: Option 'B'

Each letter of the word is moved three steps forward to obtain the code.


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