Các câu hỏi tương tự
Tim so co bon chu so co dang abcd , biet rang abc+acc+dbc=bcc
bai 1 tim so tu nhien co 4 chu so ab cd biet abcd+abc+ab+a=4321.tim abcd
bai 2 cho m , n la cac so tu nhien va p la so nguyen to thoa man 9/m-1=m+n/p. tinh A= p^2-n
bai 3 tim so co 3 chu so biet abc 1000/a+b+c=abc.
tim so co 4 chu so co dang abcd biet rang abc+acc+dbc=bcc
tim so tu nhien co bon chu so biet rang so do co the phan tich thamh tich cua hai thua so co tong bang 100 va mot trong hai thua so ay co dang a^a
tim so co 2 chu so dang ab biet rang 1ab + 36 =ab1.So can tim la
tim so co 4 chu so abcd, biet rang abd la so chinh phuong, neu cong them 72 don vi thi duoc mot so chinh phuong
Tim mot so co bon chu so biet rang trung binh cong cua các chu ao la ba và chu so hang nghin gap 3 lan chuxao hang tram
Bai 1:Cho so tu nhien A co 4 chu so. Co chu so hang don vi gap 3 lan chu so hang tram chu so hang chuc gap 8 lan chu so hang nghin. Biet A chia het cho 9.Tim A
Bai 2: Tim tat ca cac so dang 6x14y. Biet rang so do chia het cho 3,4 va 5
tim so tu nhien co 5 chu so ,biet rang neu viet them chu so 7 dang truoc so do thi duoc so moi gap 5 lan ,so co duoc bang cach viet them chu so 7 vao dang sau so do