REASONING-CODING-DECODING

Coding - Decoding

Coding - Decoding

A CODE is a ‘system of signals’. Therefore, Coding is a method of transmitting a message between the sender and the receiver without a third person knowing it.
The Coding and Decoding Test is set up to judge the candidate’s ability to decipher the rule that codes a particular word / message and break the code to decipher the message.

1.- If in a certain language, MADRAS is coded as NBESBT, how is BOMBAY coded in that code ?

Options:

A. CPNCBX       B. CPNCBZ       C. CPOCBZ       D. CQOCBZ       E. None of these

Answer:      B . CPNCBZ

Justification:      

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

2.- In a certain code, TRIPPLE is written as SQHOOKD. How is DISPOSE written in that code ?

Options:

A. CHRONRD       B. DSOESPI       C. ESJTPTF       D. ESOPSID       E. None of these

Answer:      A . CHRONRD

Justification:      

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

3.- If in a code language, COULD is written as BNTKC and MARGIN is written as LZQFHM, how will MOULDING be written in that code ?

Options:

A. CHMFINTK       B. LNKTCHMF       C. LNTKCHMF       D. NITKHCMF       E. None of these

Answer:      C . LNTKCHMF

Justification:      

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

4.- In a certain code, MONKEY is written as XDJMNL. How is TIGER written in that code ?

Options:

A. QDFHS       B. SDFHS       C. SHFDQ       D. UJHFS       E. None of these

Answer:      A . QDFHS

Justification:      

The letter of the word are written in a reverse order and then each letter is moved one step backward to obtain the code.

5.- In a certain code, COMPUTER is written as RFUVQNPC. How is MEDICINE written in the same code ?

Options:

A. EOJDJEFM       B. EOJDEJFM       C. MFEJDJOE       D. MFEDJJOE       E. None of these

Answer:      A . EOJDJEFM

Justification:      

The letter of the word are written in a reverse order and each letter, except the first and the last one, is moved one step forward, to obtain the code.
6.- If VICTORY is coded as YLFWRUB, how can SUCCESS be coded ?

Options:

A. VXEEIVV       B. VXFFHVV       C. VYEEHVV       D. VYEFIVV       E. None of these

Answer:      B . VXFFHVV

Justification:      

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

7.- In a certain code, TOGETHER is written as RQEGRJCT. In the same code, PAROLE will be written as

Options:

A. NCPQJG       B. NCQPJG       C. RCPQJK       D. RCTQNC       E. None of these

Answer:      A . NCPQJG

Justification:      

The letters at odd positions are each moved two steps backward and those at even positions are each moved two steps forward to obtain the corresponding letters of the code.

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

Options:

A. TIATIATIA       B. MNUMNUMNU       C. IATIATIAT       D. ALDALDALD       E. None of these

Answer:      B . MNUMNUMNU

Justification:      

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.

9.- If FRIEND is coded as HUMJTK, how is CANDLE written in that code ?

Options:

A. EDRIRL       B. DCQHQK       C. ESJFME       D. FYOBOC       E. DEQJQM

Answer:      A . EDRIRL

Justification:      

The first, second, third, fourth, fifth and sixth letters of th word are respectively moved two, three, four, five, six and seven steps forward to obtain the corresponding letters of the code.

10.- If in a certain language, COUNSEL is coded as BITIRAK, how is GUIDANCE written in that code ?

Options:

A. EOHYZKBB       B. FOHYZJBB       C. FPHZZKAB       D. HOHYBJBA       E. None of these

Answer:      B . FOHYZJBB

Justification:       The letters at odd positions are each moved one step backward, while the letters at even positions are respectively moved six, five, four, three, two,... steps backward to obtain the corresponding letters of the code.

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

Options:

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

Answer:      C . 8251896

Justification:      

The alphabets are coded as follows :

D	E	L	H	I	C	A	U	T
7	3	5	4	1	8	2	9	6

So, in CALICUT,
C is coded as 8,
A as 2,
L as 5,
I as 1,
U as 9   and
T as 6.
Thus, the code for CALICUT is 8251896.

12.- In a certain code, RIPPLE is written as 613382 and LIFE is written as 8192. How is PILLER written in that code ?

Options:

A. 318826       B. 318286       C. 618826       D. 338816

Answer:      A . 318826

Justification:      

The alphabets are coded as shown :

R	I	P	L	E	F
6	1	3	8	2	9

So, in PILLER,
P is coded as 3,
I as 1,
L as 8,
E as 2   and
R as 6.
Thus, the code for PILLER is 318826.

13.- If ROSE is coded as 6821, CHAIR is coded as 73456 and PREACH is coded as 961473, what will be the code for SEARCH ?

Options:

A. 246173       B. 214673       C. 214763       D. 216473

Answer:      B . 214673

Justification:      

The alphabets are coded as shown :

R	O	S	E	C	H	A	I	P
6	8	2	1	7	3	4	5	9

So, in SEARCH,
S ia coded as 2,
E as 1,
A as 4,
R as 6,
C as 7,
H as 3.
Thus, the code for SEARCH is 214673.

14.- If in a certain code, TWENTY is written as 863985 and ELEVEN is written as 323039, how is TWELVE written in that code ?

Options:

A. 863203       B. 863584       C. 863903       D. 863063

Answer:      A . 863203

Justification:      

The alphabets are coded as shown :

T	W	E	N	Y	L	V
8	6	3	9	5	2	0

So, In TWELVE ,
T is coded as 8,
W as 6,
E as 3,
L as 2,
V as 0.
Thus, the code for  TWELVE is 863203.

15.- If the letters in PRABA are coded as 27595, and THILAK are coded as 368451, how can BHARATHI be coded ?

Options:

A. 37536689       B. 57686535       C. 96575368       D. 96855368

Answer:      C . 96575368

Justification:      

The alphabets are soded as shown :

P	R	A	B	T	H	I	L	K
2	7	5	9	3	6	8	4	1

So, B is coded as 9,
H as 6,
A as 5,
R as 7,
T as 3   and
I as 8.
Thus, the code for BHARATHI is 96575368.

16.- 

If GIVE is coded as 5137 and BAT is coded as 924, how is GATE coded ?

 

Options:

A. 5427       B. 5724       C. 5247       D. 2547

Answer:      C . 5247

Justification:      

The alphabets are soded as shown :

G	I	V	E	B	A	T
5	1	3	7	9	2	4

So, G is coded as 5,
A as 2,
T as 4   and
E as 7.
Thus, the code fro GATE is 5247.

17.- 

 

If PALE is coded as 2134, EARTH is coded as 41590, how is PEARL coded in that code ?

 

Options:

A. 29530       B. 24153       C. 25413       D. 25430

Answer:      B . 24153

Justification:      

The alphabets are soded as shown :

P	A	L	E	R	T	H
2	1	3	4	5	9	0

So, P is coded as 2,
E as 4,
A as 1,
R as 5   and
L as 3.
Thus, the code for PEARL is 24153.

18.- 

If in a certain language if ENTRY is coded as 12345 and STEADY is coded as 931785, then state which is the correct code for below word. TENANT

 

Options:

A. 956169       B. 196247       C. 352123       D. 312723

Answer:      D . 312723

Justification:      

The alphabets are soded as shown :

E	N	T	R	Y	S	A	D
1	2	3	4	5	9	7	8

T is coded as 3
E as 1,
N as 2  and
A as 7.
So, TENANT is coded as 312723.

19.- 

If in a certain language if ENTRY is coded as 12345 and STEADY is coded as 931785, then state which is the correct code for below word. NEATNESS

 

Options:

A. 25196577       B. 21732199       C. 21362199       D. 21823698

Answer:      B . 21732199

Justification:      

The alphabets are soded as shown :

E	N	T	R	Y	S	A	D
1	2	3	4	5	9	7	8

N is coded as 2,
E as 1,
A as 7,
T as 3   and
S as 9.
So, NEATNESS is coded as 21732199.

20.- 

If in a certain language if ENTRY is coded as 12345 and STEADY is coded as 931785, then state which is the correct code for below word. SEDATE

 

Options:

A. 918731       B. 954185       C. 814195       D. 614781

Answer:      A . 918731

Justification:      

The alphabets are soded as shown :

E	N	T	R	Y	S	A	D
1	2	3	4	5	9	7	8

S is coded as 9,
E as 1,
D as 8,
A as 7   and
T as 3.
So, SEDATE is coded as 918731.

21.- 

If in a certain language if ENTRY is coded as 12345 and STEADY is coded as 931785, then state which is the correct code for below word. ARREST

 

Options:

A. 744589       B. 744193       C. 166479       D. 745194

Answer:      B . 744193

Justification:      

The alphabets are soded as shown :

E	N	T	R	Y	S	A	D
1	2	3	4	5	9	7	8

A is coded as 7,
R as 4,
E as 1,
S as 9   and
T as 3.
So, ARREST is coded as 744193.

22.- 

If in a certain language if ENTRY is coded as 12345 and STEADY is coded as 931785, then state which is the correct code for below word. ENDEAR

 

Options:

A. 524519       B. 174189       C. 128174       D. 124179

Answer:      C . 128174

Justification:      

The alphabets are soded as shown :

E	N	T	R	Y	S	A	D
1	2	3	4	5	9	7	8

E is coded as 1,
N as 2,
D as 8,
A as 7   and
R as 4.
So, ENDEAR is coded as 128174.

23.- 

If ENGLAND is written as 1234526 and FRANCE is written as 785291, how is GREECE coded ?

 

Options:

A. 381171       B. 381191       C. 832252       D. 835545

Answer:      A . 381171

Justification:      

The alphabets are soded as shown :

E	N	G	L	A	D	F	R	C
1	2	3	4	5	6	7	8	9

So, G is coded as 3,
R as 8,
E as 1   and
C as 9.
Thus, GREECE is coded as 381191.

24.- 

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

 

Options:

A. ALEUT       B. ALGTU       C. ALGUT       D. ALGRT       E. None of these

Answer:      C . ALGUT

Justification:      

In the given codes, the numbers are coded as shown :

1	5	7	8	9	2	3	4	6
E	G	K	P	T	A	L	U	R

i.e., 2 as A,
3 as L,
5 as G,
4 as U   and
9 as T.
So, 23549 is coded as ALGUT.

25.- 

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

 

Options:

A. QLPNKJ       B. QLPNMF       C. QLPMNF       D. QLPNDF       E. None of these

Answer:      B . QLPNMF

Justification:      

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.

26- 

The number in each question bleow is to be codified in the following code:

 

Digit	7	2	1	5	3	9	8	6	4
Letter	W	L	M	S	I	N	D	J	B

->  184632

Options:

A. MDJBSI       B. MDJBIL       C. MDJBWL       D. MDBJIL       E. None of these

Answer:      D . MDBJIL

Justification:      

As given, 1 is coded as M,
8 as D,
4 as B,
6 as J,
3 as I   and
2 as L.
So, 184632 is coded as MDBJIL.

27- 

The number in each question bleow is to be codified in the following code:

Digit	7	2	1	5	3	9	8	6	4
Letter	W	L	M	S	I	N	D	J	B

->  879341

Options:

A. DWNIBS       B. DWNBIM       C. DWNIBM       D. NDWBIM       E. None of these

Answer:      C . DWNIBM

Justification:      

As given, 8 is coded as D,
7 as W,
9 as N,
3 as I,
4 as B   and
1 as M.
So, 879341 is coded as DWNIBM.

28- 

The number in each question bleow is to be codified in the following code:

Digit	7	2	1	5	3	9	8	6	4
Letter	W	L	M	S	I	N	D	J	B

->  64928

Options:

A. JBNLD       B. JBLND       C. BJNLD       D. DBNLS       E. None of these

Answer:      A . JBNLD

Justification:      

As given, 6 is coded as J,
4 as B,
9 as N,
2 as L    and
8 as D.
So, 64928 is coded as JBNLD.

29- 

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

Options:

A. MPXDT       B. MPADC       C. MPXCD       D. MPXDC       E. None of these

Answer:      D . MPXDC

Justification:      

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.

30- 

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

Options:

A. NPTUL       B. PNTSL       C. NPTSL       D. NBTSL       E. None of these

Answer:      C . NPTSL

Justification:      

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.