Test: Coding & Decoding - 1 - UPSC MCQ

# Test: Coding & Decoding - 1 - UPSC MCQ

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## 20 Questions MCQ Test CSAT Preparation - Test: Coding & Decoding - 1

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Test: Coding & Decoding - 1 - Question 1

### If PINK is written as MLKN, how will ROSE be written?

Detailed Solution for Test: Coding & Decoding - 1 - Question 1

P - 3 = M
I + 3 = L
N - 3 = K
K + 3 = N
(PINK = MLKN )

Similarly, ROSE = ORPH

Test: Coding & Decoding - 1 - Question 2

### If SELDOM is written as MFTLNC, how will PRINCE be written?

Detailed Solution for Test: Coding & Decoding - 1 - Question 2

S E L D O M - M F T L N C

Case 1:
S + 1 = T
E + 1 = F
L + 1 = M

S E L → T F M → M F T

Case 2:
D - 1 = C
O - 1 = N
M - 1 = L

D O M → C N L → L N C

Resulting: SELDOM → MFTLNC

Similarly, PRINCE → JSQDBM

Test: Coding & Decoding - 1 - Question 3

### If GREAT is written as BVBCS, how will UNTIL be written?

Detailed Solution for Test: Coding & Decoding - 1 - Question 3

G - 5 = B
R + 4 = V
E - 3 = B
A + 2 = C
T - 1 = S
⇒ GREAT → BVBCS

Similarly,

U - 5 = P
N + 4 = R
T - 3 = Q
I + 2 = K
L - 1 = K
⇒ UNTIL → PRQKK

Test: Coding & Decoding - 1 - Question 4

If OPPOSITE is written as NOQPTJSD, how will STRAIGHT be written?

Detailed Solution for Test: Coding & Decoding - 1 - Question 4

O - 1 = N
P - 1 = O
P + 1 = Q
O + 1 = P
S + 1 = T
I + 1 = J
T - 1 = S
E - 1 = D
OPPOSITE → NOQPTJSD

Similarlly,

S - 1 = R
T - 1 = S
R + 1 = S
A + 1 = B
I + 1 = J
G + 1 = H
H - 1 = G
T - 1 = S

Test: Coding & Decoding - 1 - Question 5

If STUDENT is written as RRTBDLS, how will OFFICER be written?

Detailed Solution for Test: Coding & Decoding - 1 - Question 5

S - 1 = R
T - 2 = R
U - 1 = T
D - 2 = B
E - 1 = D
N - 2 = L
T - 1 = S
STUDENT → RRTBDLS

Similarly,

O - 1 = N
F - 2 = D
F - 1 = E
I - 1 = G
C - 2 = B
E - 1 = C
R - 2 = Q
OFFICER → NDEGBCQ

Test: Coding & Decoding - 1 - Question 6

In a certain code LAWN is written as JCUP. How will SLIT be coded in that code?

Detailed Solution for Test: Coding & Decoding - 1 - Question 6

Its all in the manner of -2, +2
J = L - 2
C = A + 2
U = W - 2
P = N + 2

and same for SLIT:
Q = S - 2
N = L + 2
G = I - 2
V = T + 2

Test: Coding & Decoding - 1 - Question 7

If TOUR is written in a certain code as 1234, CLEAR as 56784 and SPARE as 90847, what will be the 5th digit for SCULPTURE in the same code?

Detailed Solution for Test: Coding & Decoding - 1 - Question 7

TOUR → 1234
CLEAR → 56784
SPARE → 90847

Common alphabets in the three words are:
(i) R coded with the number 4 in each word.
(ii) E coded with the number 7 in each word.
(iii) A coded with the number 8 in each word.

It is clear from here that each alphabet represents a particular number/code.

In the word, SCULPTURE the 5th digit is P and in the above-given words, P is coded with the number 0.

Test: Coding & Decoding - 1 - Question 8

If BANGALORE is written as CZOFBKPQF, how will CALCUTTA be written?

Detailed Solution for Test: Coding & Decoding - 1 - Question 8

B + 1 = C
A - 1 = Z
N + 1 = O
G - 1 = F
A + 1 = B
L - 1 = K
O + 1 = P
R - 1 = Q
E + 1 = F
BANGALORE → CZOFBKPQF

Similarly,
C +1 = D
A - 1 = Z
L + 1 = M
C - 1 = B
U + 1 = V
T - 1 = S
T + 1 = U
A - 1 = Z
CALCUTTA → DZMBVSUZ

Test: Coding & Decoding - 1 - Question 9

If POSTPONE is written as OPTSOPEN, how will RAJASTAN be written?

Detailed Solution for Test: Coding & Decoding - 1 - Question 9

Every letter is interchanged by its subsequent second letter.
i.e. POSTPONE → OPTSOPEN

Therefore, RAJASTAN → ARAJTSNA

Test: Coding & Decoding - 1 - Question 10

If EXPLAINING is written as PXEALNIGNI, how will PRODUCTION be written?

Detailed Solution for Test: Coding & Decoding - 1 - Question 10

In the code, first three letters are reversed, EXP → PXE
then next two letters, LA → AL
then again next two letters, IN → NI
finally the last three letters are reversed, ING → GNI
Resulting: EXPLAINING → PXEALNIGNI

Similarly,
PRODUCTION → ORPUDTCNOI

Test: Coding & Decoding - 1 - Question 11

If TEACHING is written as CHEATING, how will BANKINGS be written?

Detailed Solution for Test: Coding & Decoding - 1 - Question 11

TEACHING:CHEATING ⇔ 12345678:45231678

BANKING:? ⇔ 12345678:45231678

Thus, BANKINGS will become KIANBNGS

Test: Coding & Decoding - 1 - Question 12

In a certain code FIRE is coded as DGPC. What will be the last letter of the coded word for SHOT.

Detailed Solution for Test: Coding & Decoding - 1 - Question 12

F - 2 = D
I - 2 = G
R - 2 = P
E - 2 = C
FIRE →DGPC

Similarly,
S - 2 = Q
H - 2 = F
O - 2 = M
T - 2 = R
QFMR → SHOT.

Hence, the last letter of the coded word is R.

Test: Coding & Decoding - 1 - Question 13

If AWAKE is written as ZVZJD, how will FRIEND be written?

Detailed Solution for Test: Coding & Decoding - 1 - Question 13

A - 1 = Z
W - 1 = V
A - 1 = Z
K - 1 = J
E - 1 = D
AWAKE → ZVZJD

Similarly,
F - 1 = E
R - 1 = Q
I - 1 = H
E - 1 = D
N - 1 = M
D - 1 = C
FRIEND → EQHDMC

Test: Coding & Decoding - 1 - Question 14

If in a code language PAINT is written as 74128 and EXCEL as 93596, then how ACCEPT will be written in that language?

Detailed Solution for Test: Coding & Decoding - 1 - Question 14

PAINT - 74128
EXCEL - 93596
Since each letter is assigned a unique code in the given words.
Therefore, the code for ACCEPT is 455978.

Test: Coding & Decoding - 1 - Question 15

If LOGIC is written as BHFNK, how will CLERK be written?

Detailed Solution for Test: Coding & Decoding - 1 - Question 15

Write the letters of the given word in reverse order
i.e. LOGIC → CIGOL
Now write the previous letters of the reversed word
i.e. CIGOL → BHFNK

Similarly,
CLERK → KRELC→ JQDKB

Test: Coding & Decoding - 1 - Question 16

If LMNO is written as GHIJ, how will STUV be written?

Detailed Solution for Test: Coding & Decoding - 1 - Question 16

L - 5 = G
M - 5 = H
N - 5 = I
O - 5 = J
LMNO → GHIJ

Similarly,
S - 5 = N
T - 5 = O
U - 5 = P
V - 5 = Q
STUV → NOPQ

Test: Coding & Decoding - 1 - Question 17

If TOUR is written as 1234, CLEAR is written as 56784 and SPARE is written as 90847, find the code for CARE

Detailed Solution for Test: Coding & Decoding - 1 - Question 17

TOUR → 1234
CLEAR → 56784
SPARE → 90847

Common alphabets in the three words are:
(i) R coded with the number 4 in each word.
(ii) E coded with the number 7 in each word.
(iii) A coded with the number 8 in each word.

It is clear from here that each alphabet represents a particular number/code.

Using the codes for the letter from given words.
C A R E will become 5 8 4 7

Test: Coding & Decoding - 1 - Question 18

If AVOPDE is written as ATONCE, how will DONE AT GATV AT ZOU DAP be written?

Detailed Solution for Test: Coding & Decoding - 1 - Question 18

Here you can see the vowels are not changing, only consonants are changing and they are also changing in the order of -1,-1,-2

Thus,
DONE AT GATV AT ZOU DAP ⇒ COME AS FAST AS YOU CAN

Test: Coding & Decoding - 1 - Question 19

If PREMONITION is written as 68530492904, how will MONITOR be written?

Detailed Solution for Test: Coding & Decoding - 1 - Question 19

Letters of the word PREMONITION are coded as follows:

Letters → Code
P → 6
R → 8
E → 5
M → 3
O → 0
N → 4
I → 9
T → 2
I → 9
O → 0
N → 4

Therefore, code for the word MONITOR is 3049208

Test: Coding & Decoding - 1 - Question 20

How many pairs of letters are there in the word 'SEQUENTIAL' which have as many letters between them as are in the alphabet?

Detailed Solution for Test: Coding & Decoding - 1 - Question 20

Arrange the word in alphabetical order and compare the pair obtained in the word and in the alphabet. The number of letters between should be equal in both. Here, the pairs obtained from the word SEQUENTIAL are SN, SQ, QN SA, and EA. Hence, five is the answer

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