Answer: The correct digits for the combination lock are 1, 5, and 8, in that order.
Explanation:
Based on the given clues, we can deduce the correct digits for the combination lock as follows:
From the clue "128 One digit is right and in its place," we know that one of the digits is 1.
From the clue "157 One digit is right, but in the wrong place," we know that either 5 or 7 is a correct digit, but in the wrong position. Since we already know that one of the digits is 1, the correct digit must be 5. Therefore, the second digit is 5 and it is in the wrong place.
From the clue "841 Two digits are right but both are in the wrong place," we know that the digits 8 and 4 are correct, but they are both in the wrong position. Therefore, the last digit must be 4 or 8. However, we also know from the clue "624 One digit is right, but in the wrong place" that the last digit is not 4. Therefore, the correct third digit is 8.
So, the correct digits for the combination lock are 1, 5, and 8, in that order.
Therefore, the combination for the lock is 158.