# Coding & Decoding Questions For RRB NTPC PDF

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## Coding & Decoding Questions For RRB NTPC PDF

Download RRB NTPC Coding & Decoding Questions and Answers PDF. Top 20 RRB NTPC Coding & Decoding questions based on asked questions in previous exam papers very important for the Railway NTPC exam.

Question 1:Â If ‘$’ and ‘@’ are coded such that 8$ 4 @ 6 = 26 and 2 $4 @ 3 = 5, then find the value of 5$ 2 @ 1.

a)Â 5

b)Â 7

c)Â 1

d)Â 9

Question 2:Â In a certain code language, ‘HAND’ is written as ‘SZMW”, then what will be the code of ‘MILK’ ?

a)Â ORNP

b)Â PNRO

c)Â NROP

d)Â RNOP

Instructions

Study the following information carefully and answer the questions which follow:
In a certain language
â€˜look read play jumpâ€™ is coded as â€˜ir re xv wsâ€™
â€™play same look wakeâ€™ is coded as â€˜ws re zt pyâ€™
â€˜same look run readâ€™ is coded as â€˜py ws ir hdâ€™

Question 3:Â What is the code for the word â€˜wakeâ€™?

a)Â py

b)Â re

c)Â zt

d)Â ws

Question 4:Â Which word of the following option is coded as â€˜xvâ€™?

a)Â jump

b)Â play

c)Â look

Question 5:Â What is the code for â€˜runâ€™?

a)Â uw

b)Â hd

c)Â tx

d)Â hp

Question 6:Â In a certain language â€˜TAILâ€™ is coded as â€˜KXWZâ€™ and â€˜MOVEâ€™ is coded as â€˜QRUSâ€™. How will â€˜VIOLATEâ€™ be written as?

a)Â UWZRKXS

b)Â UWZXRKS

c)Â UWRZXKS

d)Â UWRKZXS

Question 7:Â In a language,
â€™Cars are blue rosesâ€™ is coded as â€˜ta de ru laâ€™
â€™ Roses are redâ€™ is coded as â€˜la ru faâ€™.
â€™red are blueâ€™ is coded as â€˜fa ru deâ€™,
What is the code for â€˜carsâ€™?

a)Â ta

b)Â de

c)Â ru

d)Â la

Question 8:Â If â€˜How are youâ€™ is coded as â€˜tr we meâ€™, â€˜You are fineâ€™ is coded as â€˜me tr guâ€™, and â€˜I am fineâ€™ is coded as â€˜od gu kaâ€™, which of the following can be the code for â€˜How fine am Iâ€™?

a)Â tr od ka gu

b)Â ka od we mw

c)Â we od gu ka

d)Â gu we me tr

Question 9:Â In a certain language
â€˜call know beforeâ€™ is coded as â€˜gv qe nwâ€™
â€™look before knowâ€™ is coded as â€˜qe ml gvâ€™
What is the code for â€˜callâ€™?

a)Â qe

b)Â gv

c)Â nw

d)Â ml

Question 10:Â In a certain language
â€˜word letter writeâ€™ is coded as â€˜gw qk ncâ€™
â€™box write wordâ€™ is coded as â€˜nc mr qkâ€™
What is the code for â€˜boxâ€™?

a)Â gw

b)Â qk

c)Â nc

d)Â mr

Question 11:Â In a certain language â€˜LACEâ€™ is coded as â€˜QWVZâ€™ and â€˜DISHâ€™ is coded as â€˜ARYNâ€™. How will â€˜SLICEâ€™ be written as?

a)Â YRQZV

b)Â YQRVZ

c)Â YQVQZ

d)Â YRQVZ

Question 12:Â If â€˜Camera is onâ€™ is coded as â€˜ pa ba huâ€™ and â€˜DSLR is a cameraâ€™ is coded as â€˜od ba di paâ€™, which of the following cannot be the code for â€˜A DSLR is on a Cameraâ€™?

a)Â od pa ba hu di od

b)Â di od ba hu di pa

c)Â pa ba od od di hu

d)Â di pa ba od di od

Question 13:Â If â€˜Flights are aviansâ€™ is coded as â€˜pa ru daâ€™ and â€˜Birds are not aviansâ€™ is coded as â€˜ru pa la naâ€™ which of the following cannot be the code for â€˜Birds are flightsâ€™?

a)Â la pa na

b)Â da pa la

c)Â ru na da

d)Â na da pa

Question 14:Â If â€˜play while you playâ€™ is coded as â€˜ta da ta naâ€™ and â€˜you studyâ€™ is coded as â€˜da raâ€™, which of the following can be the code for â€˜study while you studyâ€™?

a)Â na da ta ra

b)Â na ra ra da

c)Â ra na da na

d)Â na ta da ta

Question 15:Â If â€˜Car is warâ€™ is coded as â€˜la pa gaâ€™ and â€˜war is not fairâ€™ is coded as â€˜ga rw nu paâ€™, which of the following cannot be the code for â€˜car is fairâ€™?

a)Â la nu pa

b)Â la rw ga

c)Â la nu ga

d)Â la nu rw

Question 16:Â In a language, â€˜Hell is wellâ€™ is coded as â€˜ras al gulâ€™ and â€˜deep wellâ€™ is coded as â€˜ta gulâ€™. Which of the following can be the code for â€˜Hell is deepâ€™?

a)Â gul ta ras

b)Â ras ta al

c)Â al ta gul

d)Â al gul ras

Question 17:Â If â€˜Deena is a boyâ€™ is coded as â€˜id re pa gaâ€™, ‘Preetha is a boy’ is coded as ‘id re pa sa’, and â€˜Preetha is a girl not a boyâ€™ is coded as â€˜la id re sa ta pa paâ€™ , which of the following can be the code for â€˜Boy is not a girlâ€™?

a)Â pa sa la re id

b)Â re id la ta sa

c)Â id la re ta pa

d)Â id pa la re sa

Question 18:Â If â€˜Flint fliesâ€™ is coded as â€˜ rq tuâ€™ and â€˜Teja flies an empty aeroplaneâ€™ is coded as â€˜de la ba tu diâ€™, which of the following cannot be the code for â€˜aeroplaneâ€™?

a)Â de

b)Â di

c)Â la

d)Â tu

Question 19:Â If â€˜Ram likes blueâ€™ is coded as â€˜ja ru taâ€™ and â€˜Carey likes redâ€™ is coded as â€˜ki ta laâ€™ which of the following cannot be the code for â€˜Ram likes Careyâ€™?

a)Â ta ja la

b)Â ki ru ta

c)Â la ki ta

d)Â ru la ta

Question 20:Â If CARTEL is coded as BBQSFK, what will be FUTILE coded as?

a)Â ETSJKF

b)Â EVSJKF

c)Â EVSHKF

d)Â ETSJKD

$8 \times 4 – 6 = 32-6 = 22$
$2\times4-3 = 8-3 = 5$
Then, $\times$ is coded as % and – is coded as @.
Hence, 5 $2 @ 1$= 5 \times 2 – 1 = 10-1 = 9\$

We know that,
â€˜look read play jumpâ€™ is coded as â€˜ir re xv wsâ€™
â€™play same look wakeâ€™ is coded as â€˜ws re zt pyâ€™
â€˜same look run readâ€™ is coded as â€˜py ws ir hdâ€™
From 1st and 2nd we can say that the code for play/look must be either ws/re. So the code for same/wake must be either py/zt. From the third statement we can say that code for run is hd, code for look is ws and code for same is py.
Thus we have,

Hence, option C is the correct choice.

We know that,
â€˜look read play jumpâ€™ is coded as â€˜ir re xv wsâ€™
â€™play same look wakeâ€™ is coded as â€˜ws re zt pyâ€™
â€˜same look run readâ€™ is coded as â€˜py ws ir hdâ€™
From 1st and 2nd we can say that the code for play/look must be either ws/re. So the code for same/wake must be either py/zt. From the third statement we can say that code for run is hd, code for look is ws and code for same is py.
Thus we have,

Hence, option A is the correct option.

We know that,
â€˜look read play jumpâ€™ is coded as â€˜ir re xv wsâ€™
â€™play same look wakeâ€™ is coded as â€˜ws re zt pyâ€™
â€˜same look run readâ€™ is coded as â€˜py ws ir hdâ€™
From 1st and 2nd we can say that the code for play/look must be either ws/re. So the code for same/wake must be either py/zt. From the third statement we can say that code for run is hd, code for look is ws and code for same is py.
Thus we have,

Hence, option B is the correct choice.

â€˜TAILâ€™ is coded as â€˜KXWZâ€™ and â€˜MOVEâ€™ is coded as â€˜QRUSâ€™. So letters and their codes are,
T -> K
A -> X
I -> W
L -> Z
M -> Q
O -> R
V -> U
E -> S
So â€˜VIOLATEâ€™ must be coded as â€˜UWRZXKSâ€™.
Hence, option C is the right answer.

â€˜areâ€™ is common to all the 3 sentences. Therefore, the code for â€˜areâ€™ must be â€˜ruâ€™.
â€™rosesâ€™ and â€˜areâ€™ common to the first 2 sentences. Therefore, the code for â€˜rosesâ€™ must be â€˜luâ€™.
â€™areâ€™ and â€˜blueâ€™ are common to the first and the third sentence. Therefore, the code for â€˜blueâ€™ must be â€˜deâ€™.
We know the codes for â€˜areâ€™, â€˜blueâ€™ and â€˜rosesâ€™. Therefore, from the first sentence, the code for cars must be â€˜taâ€™. Therefore, option A is the right answer.

From the second and the third sentences, we can infer that the code for â€˜fineâ€™ is â€˜guâ€™. The code for â€˜Iâ€™ and â€˜amâ€™ is â€˜odâ€™ and â€˜kaâ€™ in any order. Similarly, the code for â€˜Youâ€™ and â€˜areâ€™ is â€˜meâ€™ and â€˜trâ€™ in any order. The code for â€˜howâ€™ is â€˜weâ€™.

The code for â€™How fine am Iâ€™ must consist of â€˜weâ€™, â€˜guâ€™ and both â€˜odâ€™ and â€˜kaâ€™. Only option C satisfies this condition. Hence, option C is the right answer.

â€˜call know beforeâ€™ is coded as â€˜gv qe nwâ€™
â€™look before knowâ€™ is coded as â€˜qe ml gvâ€™
From the statements, we can say that the code for know/before is qe/gv. So the code for the â€˜callâ€™must be â€˜nwâ€™.
Hence, option C is the correct choice.

â€˜word letter writeâ€™ is coded as â€˜gw qk ncâ€™
â€™box write wordâ€™ is coded as â€˜nc mr qkâ€™
From the statements, we can say that the code for word/write is nc/qk and thus, code for box will be mr.
Hence, option D is the correct choice.

â€˜LACEâ€™ is coded as â€˜QWVZâ€™ and â€˜DISHâ€™ is coded as â€˜ARYNâ€™. So letters and their codes are,
L -> Q
A -> W
C -> V
E -> Z
D -> A
I -> R
S -> Y
H -> N
So â€˜SLICEâ€™ must be coded as â€˜YQRVZâ€™.
Hence, option B is the right answer.

The code for â€˜cameraâ€™ and â€˜isâ€™ is â€˜paâ€™ and â€˜baâ€™ in any order. The code for â€˜DSLRâ€™ and â€˜aâ€™ must be â€˜odâ€™ and â€˜diâ€™ in any order. One of these 2 codes must be used twice and the other must be used once. All other codes must be used exactly once. Option D violates this condition and hence, option D is the right answer.

As we can see, the code for â€˜flightsâ€™ is â€˜daâ€™. The code for â€˜areâ€™ and â€˜aviansâ€™ is â€˜paâ€™ and â€˜ruâ€™ in any order. Similarly, the code for â€˜Birdsâ€™ and â€˜notâ€™ is â€˜naâ€™ and â€˜laâ€™ in any order. Therefore, the code for â€˜Birds are flightsâ€™ must contain â€˜daâ€™, exactly one among â€˜paâ€™ and â€˜ruâ€™ and exactly one among â€˜naâ€™ and â€˜laâ€™. Option A violates this condition and hence, option A is the right answer.

â€™Playâ€™ is used twice and â€˜taâ€™ is used twice in the code. Therefore, the code for â€˜playâ€™ must be â€˜taâ€™. â€˜Youâ€™ is common to both the sentences and â€˜daâ€™ is common to both the codes. Therefore, the code for â€˜youâ€™ must be â€˜daâ€™ and the code for â€˜studyâ€™ must be â€˜raâ€™. The code for â€˜study while you studyâ€™ must contain 2 â€˜raâ€™s, one â€˜daâ€™ and one â€˜naâ€™. Only option B satisfies these conditions and hence, option D is the right answer.

The code for â€˜carâ€™ is â€˜laâ€™ and the code for â€˜fairâ€™ can be either â€˜rwâ€™ or â€˜nuâ€™. The code for â€˜isâ€™ can be either paâ€™ or â€˜gaâ€™.

Therefore, the code must contain â€˜laâ€™, exactly one among â€˜rwâ€™ and â€˜nuâ€™ and exactly one among â€˜paâ€™ and â€˜gaâ€™. Option D violates this condition and hence, option D is the right answer.

The code for â€˜wellâ€™ must be â€˜gulâ€™.
This implies that the code for â€˜deepâ€™ must be â€˜taâ€™.

The code for â€˜Hellâ€™ and â€˜isâ€™ is â€˜rasâ€™ and â€˜alâ€™ in any order.
Therefore, the code for â€˜Hell is deepâ€™ must contain â€˜rasâ€™, â€˜alâ€™ and â€˜taâ€™ .
Only option B satisfies this condition and hence, it is the right answer.

From the first 2 sentences, we can infer that the code for ‘Deena’ is ‘ga’ and ‘Preeta’ is ‘sa’. â€™aâ€™ is used twice in the third sentence and â€˜paâ€™ is used twice in the third sentence. Therefore, the code for â€˜aâ€™ must be â€˜paâ€™. The code for â€˜girlâ€™ and â€˜notâ€™ must be â€˜laâ€™ and â€˜taâ€™ in any order. Similarly, the code for â€˜isâ€™ and â€˜boyâ€™ must be â€˜idâ€™ and â€˜reâ€™ in any order.

Therefore, the code for â€˜Boy is not a girlâ€™ must contain â€˜id re la ta paâ€™ in any order. Only option C satisfies this condition and hence, it is the right answer.

We can see that the code for â€˜fliesâ€™ is common to both the sentences. Therefore, â€˜tuâ€™ must be the code for â€˜fliesâ€™ and â€˜rqâ€™ must be the code for â€˜Flintâ€™.Barring these 2 terms, the code for â€˜aeroplaneâ€™ can be anything among the given codes. Therefore, the code cannot be â€˜tuâ€™ and hence, option D is the right answer.

â€™Likesâ€™ is the term common to both the sentences. Therefore, the code for â€˜likesâ€™ is â€˜taâ€™. Exactly one among â€˜jaâ€™ and â€˜ruâ€™ and exactly one among â€˜kiâ€™ and â€˜laâ€™ must be used in the code for â€˜Ram likes Careyâ€™. Option C violates this condition. Therefore, option C cannot be the code and hence, it is the right answer.

C – 1 – B
A + 1 – B
R – 1 – Q
T – 1 – S
E + 1 – F
L – 1 – K

As we can see, vowels are replaced by the letter immediately following them and consonants are replaced by the letter immediately preceding them. Using the same logic,

F will be coded as E.
U will be coded as V.
T will be coded as S.
I will be coded as J.
L will be coded as K.
E will be coded as F.

Therefore, FUTILE will be coded as EVSJKF. Hence, option B is the right answer.

We hope this Coding & Decoding questions for RRB NTPC Exam will be highly useful for your preparation.