In a certain code language, “SPOT” is written as “POST”, and “PLOT” is written as “LOPT”. How will “SINK” be written in that language?

INSK

The logic followed here is;

(1st letter is interchanged with 3rd, 2nd with 1st, 3rd with 2nd and last letter remains at the same position)

So,

that's how  “SPOT” is written as “POST”

And,

“PLOT” is written as “LOPT”

Similarly,

“SINK” be written as INSK