trung binh cua 3 so la 522. so thu ba gap ruoi so thu 2 . so thu nhat bang 75 phan tram so thu 3. tim so thu 3
trung binh cong cua 3 so la 522.so thu 3 gap ruoi so thu 2,so thu 1 bang 75% so thu 3.tim so thu 3
trung binh cong cua 3 so la 680. so thu ba gap ruoi so thu hai so thu nhat bang 60% so thu ba tim so thu nhat
trung binh cong cua 3 so la 680.So thu ba gap ruoi so thu hai,so thu nhat bang 60% so thu ba .Tim so thu nhat
trung binh cong cua ba so la 180.so thu nhat gap ruoi so thu hai va bang 3/5 so thu ba. tim so thu ba
Trung binh cong cua ba so bang 680, biet rang so thu ba gap ruoi so thu hai, so thu nhat bang 60% so thu ba. Tim so thu nhat
trung binh cong cua 3 so la 680.So thu 3 gap ruoi son thu 2,so thu nhat bang 60% so thu 3
tim so thu nhat
trung binh cong cua ba so la 680.so thu ba gap ruoi so thu hai,so thu nhat bang 60 phan tram so thu ba.tim so thu nhat
1 .trung binh cong cua hai phan so la 5/12 .neu tang phan so thu nhat gap 2 lan thi trung binh cong cua chung bang 2/3 .tim hai phan so do .
2.trung binh cong cua ba phan so la 13 /36 .neu tang phan so thu nhat gap 2 lan thi trung binh cong cua chung bang 19/36 ,cho biet phan so thu hai lon hon phan so thu ba 1 /12. tim ba phan so do .