In a certain code language, ‘stay for dinner’ is written as ‘px rn tf’ and ‘dinner is ready’ is written as ‘sq mv rn’. How is ‘dinner’ written in the given language?

The correct answer is rn.

Step-by-step explanation:

1. We are given the following statements in the code language:
• "stay for dinner" is written as "px rn tf"
• "dinner is ready" is written as "sq mv rn"

2. Comparing the two statements, we look for common words and their corresponding common codes:
• The word "dinner" appears in both statements.
• The code word "rn" appears in both code expressions ("px rn tf" and "sq mv rn").

3. Since "dinner" is the only common word and "rn" is the only common code, the code for "dinner" must be rn.