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Permuted average (Posted on 2020-09-01) Difficulty: 3 of 5
For each permutation a1, a2, . . . , a10 of the integers 1,2,3,...,10, form the sum |a1 - a2| + |a3 - a4| + |a5 - a6| + |a7 - a8| + |a9 - a10|.

Find the average value of all such sums.

No Solution Yet Submitted by Danish Ahmed Khan    
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  Subject Author Date
good postlaxmee2020-09-17 05:09:54
Solutionanalytic solutionSteve Herman2020-09-01 12:01:11
Solutioncomputer solution and discussionCharlie2020-09-01 11:00:36
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