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The following questions are based on the three-digit numbers given below: 839, 246, 197, 564, 758. In which of the following numbers is the sum of its digits the lowest?

1. 246
2. 758
3. 197
4. 564

Correct answer: 246

Solution

Compute the digit sums: 246 → 2+4+6=12, 758 → 20, 197 → 17, 564 → 15. The lowest sum is 12, so 246 is correct.

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