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TUNHANVUONG
41 Posts
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 Posted - 09/03/2003 : 17:38:04  
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xin chao, cac ban giai thu bai to hop:
cho cac so 1,2,3,4,5
tinh so co nam chu so khac nhau doi mot lap tu 5 so ten,dong thoi tinh tong tat ca cac so tren,
tuong tu voi cac so 1,2,3,4,8,7,9
thu tiep voi cac so 0,1,5,7,8
may ban giai thu va gui dap an cung loi giai len dien dan nhe
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minh
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Posted - 12/03/2003 : 13:14:54
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so chu so khac nhau lap tu 5 so tren la
5.4.3.2.1=120 so |
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shang
Vietnam
26 Posts
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Posted - 13/03/2003 : 12:50:21 
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tong cac so' tren la`
(1+2+3+4+5)x10000 + 15x1000 +15x100 +15x10 +15=166665
THIEU GIA HO NGUYEN TEN HAI |
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shang
Vietnam
26 Posts
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Posted - 13/03/2003 : 12:50:56
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tong cac so' tren la`
(1+2+3+4+5)x10000 + 15x1000 +15x100 +15x10 +15=166665
THIEU GIA HO NGUYEN TEN HAI |
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shang
Vietnam
26 Posts
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Posted - 13/03/2003 : 12:57:18
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voi' cac con so' kia ta lam` tuong tu
THIEU GIA HO NGUYEN TEN HAI |
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TUNHANVUONG
41 Posts
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Posted - 13/03/2003 : 13:34:05
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shang lam sai roi, tong cac so la 3999960, lam lai va trao doi ket qua co gi lien lac qua jackynhat@yahoo.com
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TUNHANVUONG
41 Posts
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Posted - 13/03/2003 : 13:34:11
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shang lam sai roi, tong cac so la 3999960, lam lai va trao doi ket qua co gi lien lac qua jackynhat@yahoo.com
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shang
Vietnam
26 Posts
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Posted - 14/03/2003 : 21:07:53
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bac lam` sao ra duoc ket wa? y' bi gio` tui ko co' thoi` gian de? tui via` nha` xem lai . Nhung ma` lan` sau bac viet luon cach lam` de? ca? nha` cung` xem ok?????
THIEU GIA HO NGUYEN TEN HAI |
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TUNHANVUONG
41 Posts
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Posted - 15/03/2003 : 11:42:15
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goi so co 5 chu so can tim la :abcde
voi mot cach chon so abcde co dinh, thi co mot va chi mot cach chon
so a1b1c1d1e1 cung thuoc so co 5 chu so can tim va
a1=6-a, b1=6-b, c1=6-c, d1=6-d, e1=6-e,
ta co abcde+a1b1c1d1e1=66666,
trong 120 so co 5 chu so thiet lap ta chia thanh 60 nhom, moi nhom gom 2 so va hai so ay co tong =66666, nen tong cac chu so can tim la:
66666.(120/2)= 3999960. minh con mot cach giai khac tu tu minh dua len cung tham khao
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THU suc voi cac cau tich phan to hop