The word if formed into pairs of letters and the letters in each pair are reversed

By Analyzing the left side, we can conclude that Gang is the Antonym of Quarantined
By using the same logic, we can conclude that Inessential is the Antonym for Radical.

We can find the code for ‘food’ form the first and second statements.
Now, to find the code for ‘hot’,
we need to the code for ‘bring’ which cannot be determined from the given information.

A conductor leads an orchestra; a skipper leads a crew.

Given,A is coded as -,
B is coded as +,
C is coded as * and
D is coded as /

and the given expression:5 A 8 B 6 C 5 D 2 C 3
By using correct symbols, we get,
===>> 5 – 8 + 6 * 5 / 2 * 3 (by applying BODMAS Rule[Bracket, Of, Division, Multiplication, Addition and Subtraction])

= 5 – 8 + 6 * 2.5 * 3

= 5 – 8 + 6 * 7.5

= 5 – 8 + 45

= 42

Each letter in the word is moved one step forward, and the first letter of the group so obtained is put at the end, to obtain the code.

Incase of FRAGRANCE –> Next characters of the individual chars in the given words are GSBHSBODF, and the first letter of this group is put at the end, we get, SBHSBODFG.

Similarly, in the case of IMPOSING, it will be NQPTJOHJ.

(OR)

The pattern here is that the successive alphabet is written in place of the actual one.

F-G, R-S, A-B, G-H, N-O, A-B, N-O, C-D, E-F.

But, the first letter comes in the last. Thereby, FRAGRANCE becomes SBHSBODFG and IMPOSING becomes NQPTJOHJ.

Juice –see, is – lee , sweet – kee

In first and second statements, the common code word is ‘nro’ and the common word is ‘down’. So, ‘nro’ means ‘down’. In the second and third statements, the common code word is ‘bsi’ and the common code word is ‘he’. So, ‘bsi’ means ‘he’. Thus, in the second statement, ‘mit’ means ‘goes’.

Comparing relation in each of the statement, we get Asha is coded as ‘ja’.

Word :     G    R    O    U    N    D Pattern : +1  -2    +3  -4    +5   -6

Word is divided into groups of two letters each and then letters of each group move one place forward and one place backward alternatively as in English alphabet. Hence,

PERINATH => PE RI NA TH =>QFQHOBSG  and POLE => PO LE => QPKD

similarly,

SYNDROME => SY ND RO ME => TZMCSPLD

Each letter of the word is moved four steps backward to obtain the code.

In the coded word, the first three letters are reversed, then the next two letters are reversed, then again two letters are reversed, and finally, three letters are reversed. Hence, PRODUCED will be coded as ORPUDDEC.