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co hai chu so ab, biet rang 1ab+36=ab1 so can tim la
tim so co 2 chu so dang ab biet rang 1ab + 36 =ab1.So can tim la
6. tim a,b,c thoa man
a, 481abc=1481.abc
b, 1ab+36=ab1
7. tim so co 2 chu so , biet rang neu viet chu so 0 xen giua hai chu so do thi duopc so co 3 chu so gap 9 lan so co 2 chu so ban dau??
tim cac chu so a,b biet so tu nhien ab*a=1ab (ab la so tu nhien)
1ab+36=ab1 tim ab
a. ab1 - 1ab = 36
b. a0b = 7ab
tim cac chu so a va b
dien so thich hop vao cac chu de duoc phep tinh dung
a, 1ab+36=ab1
b, abc+acc+dbc=bcc
tim so tu nhien co hai chu so, biet rang neu viet them mot chu so 2 vao ben phai va mot chu so 2 vao ben trai cua no thi so ay tang gap 36 lan
tim so tu nhien co ba chu so biet rang tong sau so tu nhien co hai chu so lap boi hai trong ba chu so ay gap doi so phai tim