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Permuted average (
Posted on 2020-09-01
)
For each permutation a
1
, a
2
, . . . , a
10
of the integers 1,2,3,...,10, form the sum |a
1
- a
2
| + |a
3
- a
4
| + |a
5
- a
6
| + |a
7
- a
8
| + |a
9
- a
10
|. Find the average value of all such sums.
No Solution Yet
Submitted by
Danish Ahmed Khan
No Rating
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Puzzle Answer
Comment 4 of 4 |
The required average value is:
_
55/3 = 18.3
Posted by
K Sengupta
on 2022-04-22 04:52:21
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