Các câu hỏi tương tự
Trung binh cong moi so la 67 , trong do so thu nhat gap doi so thu ba . Neu gap so thu nhat len 2 lan va cong voi so thu ba thi trung bing cong hai so do la 118 . Tim 3 so
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 .
trung binh cong cua3 so la 70.trong do so thu nhat gap doi so thu ba.neu gap doi so thu nhat va so thu ba thi trung binh cong cua ba so do bang 99.tim so thu nhat?
giai giup minh nhe?
biet trung binh cong cua 3 so bang 58,82 neu tang so thu nhat len gap doi thi trung binh cong cua ba so bang 85,82 neu tang so thu hai gap len ba lan thi trung binh cong cua ba so bang 109,22 tim so thu ba
Biet trung binh cong cua ba so bang 58,82. Ney tang so thu nhat len gap doi thi trung binh cong cua ba so se bang85,82. Neu tang so thu hai len gap ba lan thi trung binh cong cua ba so se bang 109,22. timf so thu ba
Trung binh cong cua 3 so la 85. Neu them 1 chu so 0 vao ben phai so thu hai thi duoc so thu nhat, neu gap 4 lan so thu hai thi duoc so thu ba. Tim 3 so do.
TRUNG Binh cong cua 3 so bang 67 , trong do so thu ngat gap doi so thu 3 neu gap do thu 1va so thu 3 thi trung binh cong cua chung bang 118 tim 3 so do
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.