If 256 is coded as ‘you are good’, 637 is coded as ‘we are bad’ and 358 is coded as ‘good and bad’, then the code of ‘and’ is :

The correct answer is (a).

In the given code, each letter is represented by a number. The code for “you” is 2, the code for “are” is 5, the code for “good” is 6, the code for “bad” is 7, and the code for “we” is 3. Therefore, the code for “and” is 6.

Here is a step-by-step solution:

1. The code for “you” is 2.
2. The code for “are” is 5.
3. The code for “good” is 6.
4. The code for “bad” is 7.
5. The code for “we” is 3.
6. Therefore, the code for “and” is 6.

Here is a brief explanation of each option:

• Option (a): The code for “and” is 6.
• Option (b): The code for “and” is 2. This is incorrect because the code for “are” is 5, not 2.
• Option (c): The code for “and” is 8. This is incorrect because the code for “bad” is 7, not 8.
• Option (d): The code for “and” is 7. This is incorrect because the code for “bad” is 7, not 7.