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Study the following series of five three-digit numbers and answer the question. 628 935 275 562 471 If all the digits are arranged in ascending order within each number, which of the following will be the highest number thus formed?

1. 628
2. 935
3. 562
4. 275

Correct answer: 935

Solution

Arrange each number’s digits in ascending order: 628→268, 935→359, 275→257, 562→256, 471→147. Among these, 359 is the greatest, which comes from 935.

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