Question

What is the correct 4-digit code (with no spaces) that excludes the numbers 5, 7, 3, and 9?

Answer 1

A correct 4-digit code excluding the numbers 5, 7, 3, and 9 could be 8642, using the non-excluded digits to form a four-digit number.

Step-by-step explanation:

The question asks for a 4-digit code that excludes the numbers 5, 7, 3, and 9. Since the code must be four digits long, and it cannot include the excluded digits, we can choose any combination of the remaining digits (0, 1, 2, 4, 6, 8). One example of a valid 4-digit code could be 8642, as it uses digits not excluded and follows the criteria of being a four-digit number.