Tổng 2 số là : 990
Gọi a là sô lớn và b là số bé
a - b = 1/5 b
a = b + 1/5 b
a = 6/5 b
Tổng số phần bằng nhau :
5 + 6 = 11
Số lớn :
990 : 11 x 6 = 540
hieu cua 2 so bang 1/5 so be tong 2 so la so tron chuc lon nhat co ba chu so tim so
lon
hieu hai so bang 1/5 lan so be tong hai so la so tron chuc co 3 chu so tim so lon
Tim hieu 2 so biet tong 2 so la so lon nhat co 3 chu so khac nhau va so be bang 1/2 so lon
Cho hai so co tong bang so lon nhat co 3 chu so hieu bang so lon nhat co 2 chu so tim so lon
tim hieu cua hai so biet tong hai so lon nhat co ba chu so khac nhau va so be bang 1/2 so lon
HSG
Tong cua bon so tu nhien la so lon nhat co 7 chu so .Neu xoa di chu so hang don vi cua so 1 thi duoc so 2. so thu 3 bang hieu cua so 1 va so 2.so be nhat la tich cua so be nhat co ba chu so va so lon nhat co bon chu so .tim so thu 4
2: ban An co 170vien bi gom 2 loai :bi xanh va bi do .Ban An nhan thay 1/9 so bi xanh bang 1/8 so bi do .hoi ban An co bao nhieu bi moi loai
TRA LOI CAU HOI SAU:
cau1:1/3 cua 186 bang
cau2:5/4cua 2012 bang
cau3:3/4 cua 192 bang
cau4:hieu hai so bang 246 so be bang 3/5 so lon vay so lon la
cau5:tong hai so bang 222 biet rang neu cung them moi so 9 don vi thi so lon gap doi so be tim so lon
cau6:cho hinh chu nhat co chu vi bang 104cm biet neu giam chieu dai di 2cm va tang chieu rong len 2cm thi no cho thanh hinh vuong so do chieu dai hinh chu nhat la
cau7:tong 2 so bang 260 biet neu cung bot moi so di 6 don vi thi so lon gap 3 lan so be vay so be la
tim 2 so khi biet tong la 11992 biet hieu cua chung la hieu cua so lon nhat co bon chu so va so lon nhat co ba chu so.
tong 2 so la so chan lon nhat co 4 chau so .tim 2 so do, biet hieu hai so do la so be nhat co 4 chu so