If KEDGY is coded as EKDYG then how will LIGHT be coded?

In a letter-coding question like this, the coded word is always formed by rearranging the exact same letters of the given word under one fixed position-based rule -- no letter is ever added, dropped, or changed. The rule is discovered from the worked example, then applied position by position to the new word.

1. Write KEDGY with position numbers: K(1), E(2), D(3), G(4), Y(5).

2. Compare it with the coded word EKDYG: E(1), K(2), D(3), Y(4), G(5). This shows the letters at positions 1 and 2 have swapped, the letter at position 3 has stayed fixed, and the letters at positions 4 and 5 have swapped.

3. Write LIGHT with the same position numbers: L(1), I(2), G(3), H(4), T(5).

4. Apply the rule: swap positions 1 and 2 (L, I -> I, L), keep position 3 unchanged (G), and swap positions 4 and 5 (H, T -> T, H).

5. Reading the new positions in order (1 to 5) gives I, L, G, T, H, i.e. ILGTH.

As a check, applying the same swap-keep-swap rule in reverse to ILGTH -- swapping positions 1 and 2 back, keeping position 3, and swapping positions 4 and 5 back -- restores L, I, G, H, T, which is LIGHT itself, confirming the coding.