Final answer:
To identify the code, we need to find a 6-digit number where the sum of certain digits is equal. Using placeholders, we can explore all possible combinations to determine the safe code.
Step-by-step explanation:
To identify the code, we need to find a 6-digit number where the sum of the digits in the ones place, hundreds place, and ten-thousands place is equal to the sum of the digits in the tens place, thousands place, and hundred-thousands place. Since some of the digits are missing, we can use placeholders to represent them. Let's say the code is ABCDEF, where A represents the thousands place, B represents the hundred-thousands place, and so on.
According to the given condition, A + C + E = B + D + F. Let's try different combinations of digits:
- If A = 1, then B + D + F = 1 + C + E.
- If A = 2, then B + D + F = 2 + C + E.
- If A = 3, then B + D + F = 3 + C + E.
- ...
- If A = 9, then B + D + F = 9 + C + E.
We can continue this pattern for each possible value of A. By trying all possible combinations, we can identify which 6-digit number satisfies the condition and find the code for the safe.