trung binh cong cua 3 so la 90 . Tim moi so ,biet 1/2 so thu nhat bang 1/3 so thu 2 , so thu ba gap hai lan so thu nhat
trung binh cong cua ba so bang 39 so thu nhat gap 3 lan so thu hai so thu hai gap doi so thu ba tim ba so do
cho ba so biet trung binh cong cua so thu nhat va so thu hai bang 239 trung binh cong cua so thu 2 va so thu 3 la 248 trung binh cong cua so thu ba va so thu nhat la 295.tim so thu ba
Trung binh cong cua ba so bang 51. So thu nhat gap ba lan so thu hai ,so thu hai gap doi so thu ba. Tim ba so do
trung binh cong cua 3 so bang 39 so thu nhat gap 3 lan so thu hai so thu hai gap doi do so thu ba tim so do
trung binh cong cua ba so bang 39 so thu nhat gap 3 lan so thu hai so thu hai gap doi so thu ba tim ba so
TRUNG BINH CONG CUA 2 SO LA 123 . SO THU NHAT LA SO BE NHAT CO BA CHU SO . TIM SO THU HAI
TRUNG BINH CONG CUA HAI CHU SO LA 135 . TIM HAI SO DO, BIET RANG SO THU NHAT GAP 4 LAN SO THU HAI
GIUP MIK NHA , MOI NGUOI
giup minh
tim trung binh cong cua 3 so bang so lon nhat co hai chu so,biet so thu nhat bang so thu hai va bang 78, tim so thu ba
trung binh cong cua ba sola so lon nhat co hai chu so tim moi so do biet so thu nhat bang mot phan nam so thu hai so thu ba bang trung binh cong hai so dau