高中数学题：求和

来源: 于 2014-01-03 21:01:58 [旧帖] [给我悄悄话] 本文已被阅读：次
The numbers 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 and 15 are arranged to form a 5 × 3 table

in each of the 15! possible ways. For each table, we compute the sum of the three numbers in

each row, and record in a list the largest and the smallest of these sums. Determine the sum of the

2×15! numbers on our list.