BRAIN TRIVIA
Code breakers: find the correct 4-digit combination using the numbers 0-9, with no repeats.
5 3 0 8 - 2 digits are correct and in the correct positions
9 1 5 2 - 3 digits are correct but all in the wrong positions
7 3 9 5 - 2 digits are correct and in the correct positions, and 1 digit is correct but in the wrong position
Solution:
5391