Difficulty: Easy
Correct Answer: (6824, 2468, 4862)
Explanation:
Introduction / Context:
The three given 4-digit numbers are digit permutations of each other (rearrangements of 2, 4, 6, 8). We must select the option where all three numbers are permutations of the same digit multiset.
Concept / Approach:
Check each option: only (6824, 2468, 4862) uses exactly the digits 2, 4, 6, 8 in each element, matching the model.
Why Other Options Are Wrong:
They introduce different digits or repeat digits inconsistently, breaking the “same multiset” constraint.
Final Answer:
(6824, 2468, 4862)
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