甲乙两个盒子共装了400多个球，如果甲给乙x个，甲比乙少
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=13 13+19
；13 32
=11 11+17
；17 28
总数是32、28的公倍数，32、28的最小公倍数是224，
所以总数是：224×2=448（个）；
（448×
+448×13 32
）÷217 28
=（182+272）÷2，
=454÷2，
=227（个）；
448-227=221（个）．
答：甲盒原有227个，乙盒原有221个．
故答案为：227，221．
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| Liu Yu, a fifteen-year-old student from Shangdong, is a running star. He is 1 his school running team and has always wanted to be a professional athlete. However, his parents won't allow him to train as 2 as he would like to. "Of course we want to see Liu YU achieve his dreams," says Mr. Liu, "and we know 3 he loves running. That's great, and my wife and I have watched him in every one of his races. We have nothing against running! But we do think that our son needs to be realistic. Now that he is getting older, he needs to think about what 4 if he doesn't become a professional runner in the end." Liu Yu doesn't really agree. "Well, I think I should 5 to make decisions for myself," he says. "My parents have always taught me the importance of working hard and not just to do 6 I enjoy. I understand this. But I'm serious about running. Being a professional runner is the only thing I have ever wanted to do." Mr. and Mrs. Liu believe that Liu Yu should study hard in the evenings, and so they don't allow him to practice running 7 school nights. "I know this might seem strict," says Mrs. Liu, "but we think we're doing the right thing. He has to understand that very 8 people can become professional athletes. It's a very 9 dream to achieve. We don't allow him to practice every day because we think he needs to spend time on his homework." But Liu Yu still doesn't agree. "I know my parents care about me," he says. "But they are always talking about what will happen if I don't succeed. But I will succeed! I think I should be allowed to make this decision for myself. Only then 10 I have a chance of achieving my dream." | |||
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