15 and 45. 15*7=105, 45*9=405. That's all.
回复:南斯拉夫奥赛题:两位数(2星)
There are two solutions:
15 and 45. 15*7=105, 45*9=405. That's all.
15 and 45. 15*7=105, 45*9=405. That's all.
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• 回复:回复:南斯拉夫奥赛题:两位数(2星) -markren- ♂ (22 bytes) () 07/06/2009 postreply 12:16:02