Reasoning Aptitude
CODING AND DECODING MCQs
Coding-Decoding
Directions:
In each question below, is given a group of letters followed by four combinations of design/symbols numbered (a), (b), (c) and (d).
You have to find out which of the four combinations correctly represents the group of letters based on the following coding system and the conditions that follow and mark the number of that combination as your answer. If none of the combinations correctly represents the group of letters, mark (e), i.e., 'None of these', as your answer.
Letter
R
E
A
U
M
D
F
P
Q
I
O
H
N
W
Z
B
Digit/Symbol code
7
#
$
6
%
8
5
*
4
9
@
©
3
d
1
2
If the first letter is a consonant and the fourth letter is a vowel, both are to be coded as the codes for the vowel.
If the first letter is a vowel and the fourth letter is a consonant, both are to be coded as the code for the vowel.
If the second and the third letters are consonants, both are to be coded as the code for the third letter.
[Allahabad Bank (PO) 2010]
Decode this AJBMFU using the above-given language?
Answer: (d)
Here, none of the conditions is applied.
So the coding is done as follows. A → 4 J → 9 B → * M → # F → 8 U → ©
Hence, code for AJBMFU ⇒ 49*#8©.
Directions:
In each question below, is given a group of letters followed by four combinations of design/symbols numbered (a), (b), (c) and (d).
You have to find out which of the four combinations correctly represents the group of letters based on the following coding system and the conditions that follow and mark the number of that combination as your answer. If none of the combinations correctly represents the group of letters, mark (e), i.e., 'None of these', as your answer.
Letter
R
E
A
U
M
D
F
P
Q
I
O
H
N
W
Z
B
Digit/Symbol code
7
#
$
6
%
8
5
*
4
9
@
©
3
d
1
2
If the first letter is a consonant and the fourth letter is a vowel, both are to be coded as the codes for the vowel.
If the first letter is a vowel and the fourth letter is a consonant, both are to be coded as the code for the vowel.
If the second and the third letters are consonants, both are to be coded as the code for the third letter.
[Allahabad Bank (PO) 2010]
Decode this MBUVWE using the above-given language?
Answer: (e)
Here, none of the conditions is applied,
so the coding is done as follows. M → # B → * U → © V → 7 W → 5 E → 2
Hence, code for MBUVWE ⇒ #*©752
Directions:
In each question below, is given a group of letters followed by four combinations of design/symbols numbered (a), (b), (c) and (d).
You have to find out which of the four combinations correctly represents the group of letters based on the following coding system and the conditions that follow and mark the number of that combination as your answer. If none of the combinations correctly represents the group of letters, mark (e), i.e., 'None of these', as your answer.
Letter
R
E
A
U
M
D
F
P
Q
I
O
H
N
W
Z
B
Digit/Symbol code
7
#
$
6
%
8
5
*
4
9
@
©
3
d
1
2
If the first letter is a consonant and the fourth letter is a vowel, both are to be coded as the codes for the vowel.
If the first letter is a vowel and the fourth letter is a consonant, both are to be coded as the code for the vowel.
If the second and the third letters are consonants, both are to be coded as the code for the third letter.
[Allahabad Bank (PO) 2010]
Decode this THAFIQ using the above-given language?
Answer: (a)
When the condition is not applied, the coding is done as follows.
T → 3 H → $ A → 4 F → 8 I → @ Q → 1
But here both the first and the last latter are consonants, therefore condition (iii) is applied here.
As condition (iii) as applied here, the codes for the first and the last letters are interchanged.
T → 1 H → $ A → 4 F → 8 I → @ Q → 3
Hence, code for THAFIQ ⇒ 1$48@3.
Directions:
In each question below, is given a group of letters followed by four combinations of design/symbols numbered (a), (b), (c) and (d).
You have to find out which of the four combinations correctly represents the group of letters based on the following coding system and the conditions that follow and mark the number of that combination as your answer. If none of the combinations correctly represents the group of letters, mark (e), i.e., 'None of these', as your answer.
Letter
R
E
A
U
M
D
F
P
Q
I
O
H
N
W
Z
B
Digit/Symbol code
7
#
$
6
%
8
5
*
4
9
@
©
3
d
1
2
If the first letter is a consonant and the third letter is a vowel, their codes are to be interchanged.
If the first letter is a vowel and the fourth letter is a consonant, both are to be coded as the code for the vowel.
If the second and the third letters are consonants, both are to be coded as the code for the third letter.
[Indian Bank (PO) 2010]
Decode this EMIRDP using the above-given language?
Answer: (d)
When no condition is applied, the coding is done as follows.
E → # M → % I → 9 R → 7 D → 8 P → *
But here the first letter is a vowel and the fourth letter is a consonant,
therefore condition (ii) is applied.
As condition (ii) is applied here, both the first and the fourth letters are to be coded as the code for the vowel.
E → @ M → % I → 9 R → # D → 8 P → *
Hence, code for EMIRDP ⇒ #%9#8*.
Directions:
In each question below, is given a group of letters followed by four combinations of design/symbols numbered (a), (b), (c) and (d).
You have to find out which of the four combinations correctly represents the group of letters based on the following coding system and the conditions that follow and mark the number of that combination as your answer. If none of the combinations correctly represents the group of letters, mark (e), i.e., 'None of these', as your answer.
Letter
R
E
A
U
M
D
F
P
Q
I
O
H
N
W
Z
B
Digit/Symbol code
7
#
$
6
%
8
5
*
4
9
@
©
3
d
1
2
If the first letter is a consonant and the third letter is a vowel, their codes are to be interchanged.
If the first letter is a vowel and the fourth letter is a consonant, both are to be coded as the code for the vowel.
If the second and the third letters are consonants, both are to be coded as the code for the third letter.
[Indian Bank (PO) 2010]
Decode this HUBDIN using the above-given language?
Answer: (c)
Here, none of the condition is applied,
so the coding is done as follows. H → © U → 6 B → 2 D → 8 I → 9 N → 3
Hence, code for HUBDIN ⇒ ©62893.
Directions:
In each question below, is given a group of letters followed by four combinations of design/symbols numbered (a), (b), (c) and (d).
You have to find out which of the four combinations correctly represents the group of letters based on the following coding system and the conditions that follow and mark the number of that combination as your answer. If none of the combinations correctly represents the group of letters, mark (e), i.e., 'None of these', as your answer.
Letter
R
E
A
U
M
D
F
P
Q
I
O
H
N
W
Z
B
Digit/Symbol code
7
#
$
6
%
8
5
*
4
9
@
©
3
d
1
2
If the first letter is a consonant and the third letter is a vowel, their codes are to be interchanged.
If the first letter is a vowel and the fourth letter is a consonant, both are to be coded as the code for the vowel.
If the second and the third letters are consonants, both are to be coded as the code for the third letter.
[Indian Bank (PO) 2010]
Decode this FWZERA using the above-given language?
Answer: (b)
When no condition is applied, the coding is done as follows.
F → 5 W → d Z → 1 E → # R → 7 A → $
But here the second and third letters are consonants, therefore condition (iii) is applied here.
As condition (iii) is applied here, both the second and third letters are to be coded as the code for the third letter.
F → 5 W → 1 Z → 1 E → # R → 7 A → $
Hence, code for FWZERA ⇒ 511#7$.
Directions:
In each question below, is given a group of letters followed by four combinations of design/symbols numbered (a), (b), (c) and (d).
You have to find out which of the four combinations correctly represents the group of letters based on the following coding system and the conditions that follow and mark the number of that combination as your answer. If none of the combinations correctly represents the group of letters, mark (e), i.e., 'None of these', as your answer.
Letter
R
E
A
U
M
D
F
P
Q
I
O
H
N
W
Z
B
Digit/Symbol code
7
#
$
6
%
8
5
*
4
9
@
©
3
d
1
2
If the first letter is a consonant and the third letter is a vowel, their codes are to be interchanged.
If the first letter is a vowel and the fourth letter is a consonant, both are to be coded as the code for the vowel.
If the second and the third letters are consonants, both are to be coded as the code for the third letter.
[Indian Bank (PO) 2010]
Decode this POIMHZ using the above-given language?
Answer: (e)
When no condition is applied, coding is done as follows. P → * Q → 4 I → 9 M → % H → © Z © 1
But here the first letter is a consonant and the third letter is a vowel, therefore condition (i) is applied.
As condition (i) is applied here, the codes for first and third letters are to be interchanged.
P → 9 Q → 4 I → * M → % H → © Z → 1
Hence, code for PQIMHZ ⇒ 94*%©1.
Directions:
In each question below, is given a group of letters followed by four combinations of design/symbols numbered (a), (b), (c) and (d).
You have to find out which of the four combinations correctly represents the group of letters based on the following coding system and the conditions that follow and mark the number of that combination as your answer. If none of the combinations correctly represents the group of letters, mark (e), i.e., 'None of these', as your answer.
Letter
R
E
A
U
M
D
F
P
Q
I
O
H
N
W
Z
B
Digit/Symbol code
7
#
$
6
%
8
5
*
4
9
@
©
3
d
1
2
If the first letter is a consonant and the third letter is a vowel, their codes are to be interchanged.
If the first letter is a vowel and the fourth letter is a consonant, both are to be coded as the code for the vowel.
If the second and the third letters are consonants, both are to be coded as the code for the third letter.
[Indian Bank (PO) 2010]
Decode this NOBOQE using the above-given language?
Answer: (e)
Here, none of the conditions is applied,
so the coding is done as follows.
N → 3, O → @, B → 2, O → @, Q → 4, E → #.
Hence, code for NABAQE ⇒3@2@4#.
Directions:
In each of the questions below, a group of numerals is given followed by four groups symbol/letter combinations labelled (a), (b), (c) and (d). Numerals are to be coded as per the codes and conditions given below.
You have to find out which of the combinations (a), (b), (c) and (d) is correct and indicate your answer accordingly. If none of the four combinations represents the correct code, mark (e) as your answer.
Numerals
3
5
7
4
2
6
8
1
0
9
Letter/symbol code
*
B
E
A
@
F
K
%
R
M
If the first digit, as well as the last digit is odd, both are to be coded as 'X'.
If the first digit as well as the last digit is even, both are to be coded as &.
If the last digit is 0, it is to be coded as #.
Decode this 364819 using the above-given language?
Answer: (e)
When condition is not applied, the coding is done as follows.
3 → * 6 → F 4 → A 8 → K 1 → % 9 → M
But here the first and the last digits are odd, therefore condition (i) is applied here.
As condition (i) is applied here 3 and 9 will be coded as X.
3 → X 6 → F 4 → A 8 → K 1 → % 9 → X
Hence code for 364819 ⇒ XFAK%X
Directions:
In each of the questions below, a group of numerals is given followed by four groups symbol/letter combinations labelled (a), (b), (c) and (d). Numerals are to be coded as per the codes and conditions given below.
You have to find out which of the combinations (a), (b), (c) and (d) is correct and indicate your answer accordingly. If none of the four combinations represents the correct code, mark (e) as your answer.
Numerals
3
5
7
4
2
6
8
1
0
9
Letter/symbol code
*
B
E
A
@
F
K
%
R
M
If the first digit, as well as the last digit is odd, both are to be coded as 'X'.
If the first digit as well as the last digit is even, both are to be coded as &.
If the last digit is 0, it is to be coded as #.
Decode this 546839 using the above-given language?
Answer: (a)
When condition is not applied, the coding is done as follows.
5 → B 4 → A 6 → F 8 → K 3 → * 9 → 1
But here the first and the last digits are odd, therefore condition (i) is applied here.
As condition (i) is applied here 5 and 9 will be coded as X. 5 → X 4 → A 6 → F 8 → K 3 → * 9 → X , X A F K * X.
Hence code for 546839 ⇒ XAFK*X