còn nhiều số lắm
9+9+12+19
9+9+11+20
10+8+12+19
10+8+11+20
...................
còn nhiều số lắm
9+9+12+19
9+9+11+20
10+8+12+19
10+8+11+20
...................
tim 1 so co 2 cs, biet rang so do gap 5 lan tong cac cs cua no
tim hai so biet tong cua chung bang so nho nhat co 4 cs sao cho khi dem so nay chia cho 666 thi dc so du la so du lon nhat con hieu cua chung bang so lon nhat co 3 cs
Tim so co 4 chu so biet cac chu so cua no la 4 chu so lien tiep co tong la 18
tim hai so biet hieu giua hai so do bang thuong giua so lon nhat co 4 cs voi so le nho nhat co hai cs con tong cua chung bang tich giua so nho nhat co 3 cs deu le voi so co 3 cs giong nhau chia hat cho 5
cho so tu nhien abc biet no gap 5 lan tich cac cs cua no. tim so a?
TIM SO TU NHIEN CO 2 CHU SO BIET SO DO CHIA CHO TONG CAC CHU SO CUA NO DUOC 7 DU 9 . SO DO LA .....
mot so co hai chu so biet tong cac chu so cua no la 8 hieu cac chu so cua cua no la 4 va chu so hang chuc lon hon hang don vi so do la so nao
trung binh cong cua 2 so la 207.tim 2 so do biet rang neu viet them cs 3 vao ben trai so be co 2 cs thi duoc lon.
Tim so co hai chu so biet neu lay so do chia cho tong cac chu so cua no thi duoc thuong la 26 du 1.