trung binh cong cua 2 so tu nhien =2016 neu tang so thu nhat len gap 3 lan thi trung binh cong cua chung =4125 tim so nhat
trung binh cong cua 3 so la 24 neu gap so thu nhat len 2 lan thi trung binh cong cua chung la 28.neu gap so thu 2 len 3 lan thi trung binh cong cua chung la 36 .tim 3 so do
trung binh cong cua hai so la 2011. tim so thu hai biet so thu nhat tang len gap doi thi trung binh cong bang 3014 . tim so thu hai
trung binh cong cua 3 so la 150 neu gap so thu nhat len 3 lan va giu nguyen cac so kia thi trung binh cong cua 3 so khi do la 162
trung binh cong cua cac so le tu 10 den 20
trung binh cong cua ba so la 36 biet so thu nhat la 45 so thu hai bang 1/3 so thu nhat tim so thu 3
TRUNG BINH CONG CUA 4 SO LA 382,TRUNG BINH CONG CUA SO THU NHAT VA SO THU HAI LA 328.HOI TRUNG BINH CONG CUA SO THU BA VA SO THU TU LA BAO NHIEU?AI TRA LOI NHANH NHAT MINH CHON
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 hai so bang 2011 tim so thu hai biet so thu nhat tang gap doi thi trung binh cong hai so la 3014
trung binh cong cua so thu nhat va so thu hai la 229. trung binh cong cua so thu hai va so thu ba la 259. trung binh cong cua so thu nhat va so thu ba la 232. tim ba so do?