Following is an array of questions to test your reasoning ability in different situations. Answer each of them according to the question asked in each of them respectively:

If 367 'means I am happy'; '748' means 'you are sad' and '469' means happy and sad' in a given code, then which of the following represents 'and' in the code?

The correct answer is Option 9 (or 9).

To find which digit represents the word 'and', let us analyze the given statements step-by-step:

1. '367' means 'I am happy'
2. '748' means 'you are sad'
3. '469' means 'happy and sad'

Comparing statement 1 ('367' = 'I am happy') and statement 3 ('469' = 'happy and sad'):
Both statements contain the common word 'happy'.
Looking at the numbers '367' and '469', the common digit is '6'.
Therefore, the digit '6' represents the word 'happy'.

Comparing statement 2 ('748' = 'you are sad') and statement 3 ('469' = 'happy and sad'):
Both statements contain the common word 'sad'.
Looking at the numbers '748' and '469', the common digit is '4'.
Therefore, the digit '4' represents the word 'sad'.

Now, let us examine statement 3 ('469' = 'happy and sad'):
- '6' represents 'happy'
- '4' represents 'sad'
The remaining digit in '469' is '9', and the remaining word is 'and'.

Hence, the digit '9' represents the word 'and'.