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我很喜欢牛,因为牛是人类忠实的朋友。牛是农家宝,是农民生活的好帮手,耕地、拉车,一年四季忙不停。牛一生默默无闻、埋头苦干,任劳任怨、负重前行。牛吃的是草,挤的是奶。牛的“吃苦耐劳、勤肯奉献”的精神令我敬佩。近期我看到一道关于牛的题,觉得耐人寻味。现把此题分享给大家。
","type":1},{"audio_music_id":0,"img_height":646,"img_size":97,"img_url":"https://ss-mpvolc.meipian.me/users/12090723/d61df04e70a267f834dd17c2a7d1423c__jpg.heic","img_width":1080,"is_origin":false,"source":0,"text":"古代有位老人,有17头牛,临终前要分给三个儿子,老大分1/2,老二分1/3,老三分1/9。条件是,牛要全部分完,但不能杀牛,该怎么分?
","type":1},{"audio_music_id":0,"img_height":788,"img_size":127,"img_url":"https://ss-mpvolc.meipian.me/users/12090723/765e36c47f81927c27a68b67183b2779__jpg.heic","img_width":1080,"is_origin":false,"source":0,"text":"仔细研究老人的遗嘱可以发现,遗嘱包含三点要求:第一,把17头牛全部分给儿子。第二,按比例分配,老大1/2,老二1/3,老三1/9。第三,不杀牛。
","type":1},{"audio_music_id":0,"img_height":646,"img_size":110,"img_url":"https://ss-mpvolc.meipian.me/users/12090723/3529fe595a1d4013b870b7ceb27bd841__jpg.heic","img_width":1080,"is_origin":false,"source":0,"text":"剖析题目,觉得此题有点玄机。若题中的1/2、1/3、1/9的值是占总数的比例,那它们加起来应该等于1,可三数之和等于17/18 ,比1少了1/18。
","type":1},{"audio_music_id":0,"img_height":1508,"img_size":184,"img_url":"https://ss-mpvolc.meipian.me/users/12090723/056236c7959101881a5b6fd70c8f9f82__jpg.heic","img_width":1080,"is_origin":false,"source":0,"text":"如何分牛,我觉得提供了两种思路:一是借一还一,二是纯按比例分牛。
","type":1},{"audio_music_id":0,"img_height":664,"img_size":113,"img_url":"https://ss-mpvolc.meipian.me/users/12090723/461d8cd92f43711e188cdd59c899e47e__jpg.heic","img_width":1032,"is_origin":false,"source":0,"text":"1、借一还一。因为按遗嘱分牛,是分牛的17/18,有1/18没有分。
","type":1},{"audio_music_id":0,"img_height":1240,"img_size":98,"img_url":"https://ss-mpvolc.meipian.me/users/12090723/61fd5ba68bbebd30ca89fda42782884c__jpg.heic","img_width":1080,"is_origin":false,"source":0,"text":"若借1头牛后分牛,变成18/18就好分了。分完17头牛是17/18。借的1头牛是1/18,正好剩下再还回去。
","type":1},{"audio_music_id":0,"img_height":1070,"img_size":88,"img_url":"https://ss-mpvolc.meipian.me/users/12090723/a8a3c537f972681d9acb0248e0113dca__jpg.heic","img_width":1080,"is_origin":false,"source":0,"text":"这样分牛,牛的总数就变成了(17+1),您知道老大、老二、老三各分多少头牛吗?记得分完牛,把借的1头牛还回去。
公式:18x所占比例=?(头)
还回去借的1头牛。
","type":1},{"audio_music_id":0,"img_height":800,"img_size":92,"img_url":"https://ss-mpvolc.meipian.me/users/12090723/f5bb5b379cc8cd2566907c1583abf9da__jpg.heic","img_width":1080,"is_origin":false,"source":0,"text":"2、按比例分牛。因为按遗嘱分牛有剩余,所以可以考虑按比例分牛。
","type":1},{"audio_music_id":0,"img_height":644,"img_size":92,"img_url":"https://ss-mpvolc.meipian.me/users/12090723/eb7b08be2d41f8720f82925fda6bde79__jpg.heic","img_width":1080,"is_origin":false,"source":0,"text":"老大、老二、老三,按1/2:1/3:1/9比例分牛。比例同时乘以它们的最小公倍数18后是9:6:2。
","type":1},{"audio_music_id":0,"img_height":684,"img_size":92,"img_url":"https://ss-mpvolc.meipian.me/users/12090723/50fc308def54377032856907887f3994__jpg.heic","img_width":1080,"is_origin":false,"source":0,"text":"计算每份的份额。用牛的总头数除以三兄弟份数之和,得出每份为1头牛。
17(头)÷(9+6+2=17)份=1(头/份)
","type":1},{"audio_music_id":0,"img_height":694,"img_size":109,"img_url":"https://ss-mpvolc.meipian.me/users/12090723/99623b3782a44ff61b71c544cf58a56c__jpg.heic","img_width":1080,"is_origin":false,"source":0,"text":"按此方法分牛,您能验算出老大、老二、老三各分几头牛吗?
公式:1x所占份数=?(头)
","type":1},{"audio_music_id":0,"img_height":842,"img_size":96,"img_url":"https://ss-mpvolc.meipian.me/users/12090723/965871001faa84e400f0421abb2f018f__jpg.heic","img_width":1080,"is_origin":false,"source":0,"text":"据说,勤用脑人不老。多动脑,可延缓人体衰老速度,加强大脑灵活性,提升记忆力。让我们一起多用脑,健康长寿。
注:图片来自网络。
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","type":1},{"audio_music_id":0,"img_height":646,"img_size":97,"img_url":"https://ss-mpvolc.meipian.me/users/12090723/d61df04e70a267f834dd17c2a7d1423c__jpg.heic","img_width":1080,"is_origin":false,"source":0,"text":"古代有位老人,有17头牛,临终前要分给三个儿子,老大分1/2,老二分1/3,老三分1/9。条件是,牛要全部分完,但不能杀牛,该怎么分?
","type":1},{"audio_music_id":0,"img_height":788,"img_size":127,"img_url":"https://ss-mpvolc.meipian.me/users/12090723/765e36c47f81927c27a68b67183b2779__jpg.heic","img_width":1080,"is_origin":false,"source":0,"text":"仔细研究老人的遗嘱可以发现,遗嘱包含三点要求:第一,把17头牛全部分给儿子。第二,按比例分配,老大1/2,老二1/3,老三1/9。第三,不杀牛。
","type":1},{"audio_music_id":0,"img_height":646,"img_size":110,"img_url":"https://ss-mpvolc.meipian.me/users/12090723/3529fe595a1d4013b870b7ceb27bd841__jpg.heic","img_width":1080,"is_origin":false,"source":0,"text":"剖析题目,觉得此题有点玄机。若题中的1/2、1/3、1/9的值是占总数的比例,那它们加起来应该等于1,可三数之和等于17/18 ,比1少了1/18。
","type":1},{"audio_music_id":0,"img_height":1508,"img_size":184,"img_url":"https://ss-mpvolc.meipian.me/users/12090723/056236c7959101881a5b6fd70c8f9f82__jpg.heic","img_width":1080,"is_origin":false,"source":0,"text":"如何分牛,我觉得提供了两种思路:一是借一还一,二是纯按比例分牛。
","type":1},{"audio_music_id":0,"img_height":664,"img_size":113,"img_url":"https://ss-mpvolc.meipian.me/users/12090723/461d8cd92f43711e188cdd59c899e47e__jpg.heic","img_width":1032,"is_origin":false,"source":0,"text":"1、借一还一。因为按遗嘱分牛,是分牛的17/18,有1/18没有分。
","type":1},{"audio_music_id":0,"img_height":1240,"img_size":98,"img_url":"https://ss-mpvolc.meipian.me/users/12090723/61fd5ba68bbebd30ca89fda42782884c__jpg.heic","img_width":1080,"is_origin":false,"source":0,"text":"若借1头牛后分牛,变成18/18就好分了。分完17头牛是17/18。借的1头牛是1/18,正好剩下再还回去。
","type":1},{"audio_music_id":0,"img_height":1070,"img_size":88,"img_url":"https://ss-mpvolc.meipian.me/users/12090723/a8a3c537f972681d9acb0248e0113dca__jpg.heic","img_width":1080,"is_origin":false,"source":0,"text":"这样分牛,牛的总数就变成了(17+1),您知道老大、老二、老三各分多少头牛吗?记得分完牛,把借的1头牛还回去。
公式:18x所占比例=?(头)
还回去借的1头牛。
","type":1},{"audio_music_id":0,"img_height":800,"img_size":92,"img_url":"https://ss-mpvolc.meipian.me/users/12090723/f5bb5b379cc8cd2566907c1583abf9da__jpg.heic","img_width":1080,"is_origin":false,"source":0,"text":"2、按比例分牛。因为按遗嘱分牛有剩余,所以可以考虑按比例分牛。
","type":1},{"audio_music_id":0,"img_height":644,"img_size":92,"img_url":"https://ss-mpvolc.meipian.me/users/12090723/eb7b08be2d41f8720f82925fda6bde79__jpg.heic","img_width":1080,"is_origin":false,"source":0,"text":"老大、老二、老三,按1/2:1/3:1/9比例分牛。比例同时乘以它们的最小公倍数18后是9:6:2。
","type":1},{"audio_music_id":0,"img_height":684,"img_size":92,"img_url":"https://ss-mpvolc.meipian.me/users/12090723/50fc308def54377032856907887f3994__jpg.heic","img_width":1080,"is_origin":false,"source":0,"text":"计算每份的份额。用牛的总头数除以三兄弟份数之和,得出每份为1头牛。
17(头)÷(9+6+2=17)份=1(头/份)
","type":1},{"audio_music_id":0,"img_height":694,"img_size":109,"img_url":"https://ss-mpvolc.meipian.me/users/12090723/99623b3782a44ff61b71c544cf58a56c__jpg.heic","img_width":1080,"is_origin":false,"source":0,"text":"按此方法分牛,您能验算出老大、老二、老三各分几头牛吗?
公式:1x所占份数=?(头)
","type":1},{"audio_music_id":0,"img_height":842,"img_size":96,"img_url":"https://ss-mpvolc.meipian.me/users/12090723/965871001faa84e400f0421abb2f018f__jpg.heic","img_width":1080,"is_origin":false,"source":0,"text":"据说,勤用脑人不老。多动脑,可延缓人体衰老速度,加强大脑灵活性,提升记忆力。让我们一起多用脑,健康长寿。
注:图片来自网络。
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