In a certain coding scheme, CLASS and CABIN are coded as XOZHH and XZYRM,…

Concept

In opposite-letter coding, each letter is replaced by the letter at the same distance from the other end of the English alphabet.

The paired alphabet positions sum to 27: A↔Z, B↔Y, C↔X, and so on.

Application

1. The examples confirm the rule: CLASS becomes C→X, L→O, A→Z, S→H, S→H; CABIN becomes C→X, A→Z, B→Y, I→R, N→M.

2. Apply the same rule to TABLE: T→G, A→Z, B→Y, L→O, E→V.

3. Joining the coded letters in order gives GZYOV.

Cross-check

Each input and output position sums to 27: T(20)+G(7), A(1)+Z(26), B(2)+Y(25), L(12)+O(15), and E(5)+V(22). Hence the code of TABLE is GZYOV.