tim hai so biet tbc cua chung bang 186 va biet so lon gap doi so be
tim hai so co tong la 1149 biet rang neu giu nguyen so lon va gap doi so be len 3 lan thi ta duoc tong moi bang 2061
Tong cua hai so bang 64.Tim hai so do.,biet rang neu so be gap len 3 lan thi duoc so lon
1. Tim chu vi cua hinh chu nhat, biet rang neu tang chieu rong them 3m va chieu dai them 3m thi dien tich tang them 219m2.
2. Tim hai so biet tong cua chung bang 68 va 2/3 so lon thi bang 3/4 so be.
biet trung binh cong cua hai so bang 78. tim hai so do ,biet rang so lon gap 5 lan so be
biet trung binh cong cua hai so bang 68 tim hai so do biet rang so lon gap 3 lan so be
trung binh cong cua hai so la 15.Tim hai so do,biet rang so lon gap doi so be.
tim 2 so biet tong cua chung la so lon nhat co 3 chu so be bang 1 nua so lon
trung binh cong cua hai so bang 15.tim hai so do biet so lon gap doi so be