Các câu hỏi tương tự
tong cua hai so la 990.biet so be bang 2/3 so lon.tim hieu cua hai so do
Hieu cua hai so la 132.So be bang mot phan nam so lon.Tim hai so do.
tong cua 2 so la 120 biet so be bang 1/2 so lon.Tim 2 so do
tong hai so la 1200,so be bang 25% so lon.tim hai so do
tong hai so la 1480.Biet so be bang 25% so lon.Tim so lon.
tim hai so sao cho neu lay 2 phan 3 cua tong hai so do tru di hieu so cua hai so do thi duoc 32 con neu lay 1 phan 2 hieu so cua hai so do nhan voi 6 thi bang tong hai so do
Hieu cua hai so la 36 .So lon bang 5/3 so be .Tim tong cua hai so do
hai so thap phan co tong la 38,18. Neu ta doi dau phay cua so lon sang ben phai mot hang va giu nguyen so be thi tong cua hai so thap phan luc do la 269,93 . Tim hai so thap phan do
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 .