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99 numbers in three lists (Posted on 2024-09-27) Difficulty: 3 of 5
List 1: Write down the numbers 1 to 99

1, 2, 3, 4, 5, 6, 7, 8, 9, ..., 99

List 2: Take every successive set of three numbers (3k-2, 3k-1, 3k) for k=(1...33) and randomly apply a permutation to the trio. Example:

3, 1, 2, 4, 5, 6, 7, 9, 8, ..., 98

List 3: Multiply the first numbers, second numbers, etc of lists 1 and 2. Example:

3, 2, 6, 16, 25, 36, 49, 72, 72, ..., 9702

What is the expected sum of the values in list 3?

No Solution Yet Submitted by Jer    
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  Posted by Hedda Dunn on 2024-12-13 14:51:32

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