In a certain code language, ‘join the class’ is written as ‘yq pt dm’ and ‘the music class’ is written as ‘rj yq dm’. How is ‘music’ written in the given language?

The correct option is rj.

To determine the code for the word ‘music’, let us compare the given statements and their corresponding codes step-by-step:

1. Statement 1: ‘join the class’ = ‘yq pt dm’
2. Statement 2: ‘the music class’ = ‘rj yq dm’

Now, let us compare both statements to find the common words and their codes:

• The words ‘the’ and ‘class’ appear in both statements.
• Looking at the codes, the common code words present in both statements are ‘yq’ and ‘dm’.
• Therefore, the words ‘the’ and ‘class’ correspond to the codes ‘yq’ and ‘dm’ (in any order).

Now, looking back at Statement 2: ‘the music class’ = ‘rj yq dm’:
• Since ‘the’ and ‘class’ account for the codes ‘yq’ and ‘dm’, the remaining word in this statement is ‘music’.
• The remaining code in this statement is ‘rj’.

Hence, the word ‘music’ is written as ‘rj’ in the given code language.