Các câu hỏi tương tự
trung binh cong cua 3 so la 29.So thu hai gap doi o thu nhat,so thu ba lon hon so thu hai 7 don vi.Tim ba so.
trung binh cong cua 3 so la 156 so thu nhat hon so thu hai 57 don vi va gap 3 lan so thu 3 tim ba so do
trung binh cong cua 3 so la 20.neu gap so thu nhat len 2 lan thi trung binh cong cua chung la24.neu gap so thu hai len 3 lan thi trung binh cong cua chung la 32.tim so thu ba.
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 .
So thu nhat la 48.So thu hai bang 90%so thu nhat.So thu 3bang 75% so thu 2.Tim trung binh cong cua ba so
Trung binh cong cua ba so la 52. So thu ba bang trung binh cong cua so thu nhat va so thu hai. So thu nhat hon so thu hai la 24. Tim so thu nhat ?
Trung binh cong cua 3 so bang 20. Neu tang so thu nhat len 2 lan thi trung binh cong cua chung la 24. Neu tang so thu hai len 3 lan thi trung binh cong cua chung la 32. Vay so thu ba la...................
trung binh cong cua ba so bang 150.trong do so thu nhat hon so thu hai 15 don vi
va kem so thu ba 12 don vi.tim so thu 3? ve so do giup minh nhe.
Trung binh cong cua ba so do la 78.Tim ba so do biet so thu nhat gap ba lan so thu hai,so thu hai gap ba lan so thu ba.