# Coding and Decoding

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Coding and Decoding:

What is coding-decoding?

Coding-Decoding is the simplest form of verbal intelligence reasoning. In this type of question, a set of letters or numbers are given in code in which they have to be deciphered or decoded. The coding-decoding can be divided in to two types:

• Letter Coding – In this type certain letters of alphabet stand for certain other letters of alphabet. For eg: CROWN = DSPXO

In this each letter is replaced by its following letter in the alphabet i.e. C by D, R by S and so on.

• Number Coding – In this type letters are changes by the number of letters in their corresponding alphabetic position. There are several methods of number coding:
1. Position numbers of letters remain the same. For eg: CLEAR = 3125118
2. Position numbers of letters are added. For eg: FEAR = 30
In this case, position number is added i.e. 6 + 5 + 1 + 18 = 30
3. Position numbers of letters are added but at the same time a certain number is subtracted, added, multiplied or divided. For eg: FEAR = 120
Here, (6 + 5 + 1 + 18) * 4 = 30 * 4 = 120

# Aptitude Questions (Coding and Decoding):

1. In a certain code language ‘GOAL’ is written as ‘HPBM’. How will ‘POST’ be written in that code?

A)    QPTS

B)    QPST

C)    QPTV

D)    QPTU

E)    None of these

Explanation:

GOAL => HPBM

In this each letter is replaced by its following letter in the alphabet i.e.

G + 1 = H

O + 1 = P

A + 1 = B

L + 1 = M

So, in the same way

POST = QPTU

P + 1 = Q

O + 1 = P

S + 1 = T

T + 1 = U

2. In a certain code language ‘PINK’ is written as ‘NGLI’. How will ‘REST’ be written in the same code?

A) PMLR

B) PCQR

C) PBQR

D) PQRE

E) None of these

Explanation:

PINK => NGLI

P – 2 = N

I – 2 = G

N – 2 = L

K – 2 = I

So, in the same way

REST => PCQR

R – 2 = P

E – 2 = C

S – 2 = Q

T – 2 = R

3. In a certain code language, ‘LOSE’ is written as ‘MQVI’. How will ‘GAIN’ be written in that code?

A) GCLR

B) HLCR

C) HCLS

D) HCLR

E) None of these

Explanation:

LOSE => MQVI

L + 1 = M

O + 2 = Q

S + 3 = V

E + 4 = I

So, in the same way

GAIN => HCLR

G + 1 = H

A + 2 = C

I + 3 = L

N + 4 = R

4. In a certain code, language ‘RUMSZ’ is written as ‘PRINT’. How will ‘FUMSQ’ be written in that code?

A) PRICK

B) BRING

C) DRINK

D) DREAM

E) None of these

Explanation:

RUMSZ => PRINT

R – 2 = P

U – 3 = R

M – 4 = I

S – 5 = N

Z – 6 = T

So, in the same way

FUMSQ => DRINK

F – 2 = D

U – 3 = R

M – 4 = I

S – 5 = N

Q – 6 = K

5. In a certain code language ‘FAVOUR’ is written as ‘ECURTV’. How will ‘FOSTER’ be written in that code?

A) GQTWFV

B) EQRWDV

C) QEWRVD

D) EQRVDV

E) None of these

Explanation:

FAVOUR => ECURTV

F – 1 = E

A + 2 = C

V – 1 = U

O + 3 = R

U – 1 = T

R + 4 = V

So, in the same way

FOSTER => EQRWDV

F – 1 = E

O + 2 = Q

S – 1 = R

T + 3 = W

E – 1 = D

R + 4 = V