Tổng của hai số đó là: 1468 x 2 = 2936
Gọi hai số canaf tìm là : abc và 2abc
Theo bài ra ta có: abc + 2abc = 2936
=> abc + 2000 + abc = 2936
=> 2.(abc) = 2936 - 2000
=> 2.(abc) = 936
=> abc = 936 : 2
=> abc = 468
cho hai so tu nhien co trung binh cong cua hai so tu nhien bang 1485 va biet neu viet them chu so 1 vao ben trai so be ta duoc so lon . tim so be
cho 2 so tu nhien co trung binh cong cua 2 so tu nhien = 1485 biet neu viet them chu so 1 vao ben trai so be ta duoc so lon tim so be
1. mot cua hang nhap vao moi hop banh la 70000 dong.hoi cua hang do phai ban ra voi gia bao nhieu de duoc lai 20% gia ban moi hop banh.
2.cho hai so tu nhien co trung binh cong cua hai so tu nhien bang 1485 va biet neu viet them chu so 1 vao ben trai so be ta duoc so lon.tim so be ?
3.trung binh cong cua tat ca cac so tu nhien co 3 chu so.
trung binh cong cua 2 so tu nhienbang 2375. tim so be biet, neu viet them chu so 3 vao ben trai so be thi ta duoc so lon. tim so be
giai thich cho minh hieu nha
T rung binh cong cua 2 so tu nhien la 117 tim 2 so do biet rang neu viet them chu so 1 vao ben trai so be thi ta duoc so lon
trung binh cong cua hai so la 963. Neu viet them chu so 1 vao ben trai so be ta duoc so lon. Tim so lon
trung binh cong cua 2 so la 117 tim 2 so do biet rang neu viet them chu so 1 vao ben trai so be thi duoc so lon tim
trung binh cong cua hai so tu nhien la 343.tim so lon,biet rang neu them chu so 4 vao ben phai so nho thi duoc so lon
trung binh cong cua hai so la 963 neu viet them chu so 1 vao ben trai so be ta duoc so lon tim so lon
P/s:giai thich ro giup minh
