Mathematical and Logical Reasoning Test 84

Given, SKEW is coded as PNCY.
Here, the letters are decoded by moving the letters +3, -3, +2 and -2 steps respectively as shown below: 

In .the code, first letter is one place before, second letter is two places ahead, third letter is two places before, fourth letter is three places ahead and so on.
So, MALE will be coded as LCII.

In the code, the letters in the odd places are one before and those in the even places are one ahead than the corresponding letter in the word.
So COUNTRY will become BPTMSSX.

The manner of decoding is
$$\downarrow  OP  \downarrow  FG   \downarrow  BC  \downarrow  ST   \rightarrow $$ codes
N          E           A           R          $$\rightarrow$$ given word
The letters preceding two consecutive letters in the alphabetical series are picked to depict, the coded word.
Similarly,
$$\downarrow   IJ    \downarrow  VW   \downarrow  HI    \rightarrow$$ given codes
H        U            G          $$\rightarrow$$ answer word

Given, PRODUCTS is written as NPMBSARQ.
Here each letter is coded as:
P $$\underrightarrow { -2\quad  } $$ N
R $$\underrightarrow { -2\quad  } $$ P
O $$\underrightarrow { -2\quad  } $$ M
D $$\underrightarrow { -2\quad  } $$ B
U $$\underrightarrow { -2\quad  } $$ S
C $$\underrightarrow { -2\quad  } $$ A
T $$\underrightarrow { -2\quad  } $$ R
S $$\underrightarrow { -2\quad  } $$ Q
Similarly, the word which is coded as COMPREHENSION is find out as:
A $$\underrightarrow { -2\quad  } $$ C
M $$\underrightarrow { -2\quad  } $$ O
K $$\underrightarrow { -2\quad  } $$ M
N $$\underrightarrow { -2\quad  } $$ P
P $$\underrightarrow { -2\quad  } $$ R
C $$\underrightarrow { -2\quad  } $$ E
F $$\underrightarrow { -2\quad  } $$ H
C $$\underrightarrow { -2\quad  } $$ E
L $$\underrightarrow { -2\quad  } $$ N
Q $$\underrightarrow { -2\quad  } $$ S
G $$\underrightarrow { -2\quad  } $$ I
M $$\underrightarrow { -2\quad  } $$ O
L $$\underrightarrow { -2\quad  } $$ N
Therefore, the word which is coded as 'COMPREHENSION' in that language is 'AMKNPCFCLQGML'.
Hence, option (B) is the correct answer.

Here, the letters at odd places in the coded word are one letter ahead of the letters in the given word, and letters at even places are one letter behind of the letters in the given word as their positions in the alphabet.
Similarly, GREATNESS is coded as HQFZUMFRT.
Hence, option (B) is the correct answer.

Given, EXPLAINING is written as PXEALNIGNI.
Here, the coded word is obtained by reversing first three letters then next two letters, then again next two letters and finally the last three letters are reversed orderly. 
Similarly, PRODUCED is written as ORPUDDEC.
Hence, option (C) is the correct answer.

Given, SOCIAL is written as TQFMFR.
Here each letter is coded as:
S $$\underrightarrow { +1\quad  } $$ T
O $$\underrightarrow { +2\quad  } $$ Q
C $$\underrightarrow { +3\quad  } $$ F
I $$\underrightarrow { +4\quad  } $$ M
A $$\underrightarrow { +5\quad  } $$ F
L $$\underrightarrow { +6\quad  } $$ R
Similarly, DIMPLE will be coded as:
D $$\underrightarrow { +1\quad  } $$ E
I $$\underrightarrow { +2\quad  } $$ K
M $$\underrightarrow { +3\quad  } $$ P
P $$\underrightarrow { +4\quad  } $$ T
L $$\underrightarrow { +5\quad  } $$ Q
E $$\underrightarrow { +6\quad  } $$ K
Therefore, the word 'DIMPLE' is coded as 'EKPTQK'.
Hence, option (A) is the correct answer.

Here, the letters at even place in the word 'NATURE' remains the same as in the code word 'MASQUE'.
The letters at odd place in the word 'NATURE' are replaced by the letter preceding to it in the natural alphabetic series in the code word 'MASQUE'. 
Similarly, the word 'FAMINE' is coded as 'EALIME'.
Hence, option (D) is the correct answer.

Given, PORTER is written as QNSSFQ.
Here each letter is coded as:
P $$\underrightarrow { +1\quad  } $$ Q
O $$\underrightarrow { -1\quad  } $$ N
R $$\underrightarrow { +1\quad  } $$ S
T $$\underrightarrow { -1\quad  } $$ S
E $$\underrightarrow { +1\quad  } $$ F
R $$\underrightarrow { -1\quad  } $$ Q
Similarly, BRIGHT will be coded as:
B $$\underrightarrow { +1\quad  } $$ C
R $$\underrightarrow { -1\quad  } $$ Q
I $$\underrightarrow { +1\quad  } $$ J
G $$\underrightarrow { -1\quad  } $$ F
H $$\underrightarrow { +1\quad  } $$ I
T $$\underrightarrow { -1\quad  } $$ S
Therefore, the word 'BRIGHT' is coded as 'CQJFIS'.
Hence, option (A) is the correct answer.