Mathematics
Senior High
Solved
求解
2 用六個數字0,1,2,3,4,5組成沒有重複數字的三位數
(1)能組成多少個三位數?
(2)這些三位數中,不是5的倍數者有多少個?
3
5x5x4
= 100
x 1 2 3
5x5x4
= 10064
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