Các câu hỏi tương tự
thay a,c =cac so biet rang ; ac2=acc
Tim so tu nhien a,b,c,d sao cho
a, abc . 5 = dad
b, abc+ba=dcca
c, (ac)2 = acc
d, acc-cca=aa
tim cac chu so a ,b, c,d khac nhau biet rang abc x c=dac
1)mot so co 6 chu so , tan cung la so 4. biet rang khi chuyen chu so 4 len dau con cac chu so khac giu nguyen thi ta duoc so moi gap so cu 4 lan
.
2)biết rằng :abc +acc+dbc=bcc.vay abcd=..............
tim so co 5 chu so biet rang so do co rang abcba voi c / 2 < A<C VOI TONG CAC CHU SO BANG bb
tim so co 5 chu so .biet rang so do co rang abcba voi c/2 <a <c va tong cac chu so do bang bb
tim so co 5 chu so biet rang so do co rang abcba voi c / 2 <a<c va tong cac chu so do bang bb
cho ba chu so a,b,c voi 0<a<b<c
a) viet tap hop A cac so co 3 chu so, moi so gom ca ba chu so tren
b) biet rang tong 2 so nho nhat trong tap hop A bang 499.tim tong cac chu so a+b+c
Tinh tong A + B biet rang A la tong cac so nguyen am le 2 chu so B la tong cac so nguyen duong chan co 2 chu so