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S
11 tháng 12 2015
2 laand số gà bằng năm lần số vịt =>số gà bằng 2/5 số vịt
ta có hiệu số phần bằng nhau là 5-2=3
số gà là:120:3x2=80 con
25 tháng 11 2016
hieu so phan bang nhau la:
5-2=3(phan)
so ga la ;
120:3x2=80(con )
dap so 80 con
2 lần số vịt bằng 5 lần số gà vậy số vịt bằng 5/2 số gà. Ta có
Vịt +..+..+..+..+..+
Gà +..+..+ 120
Có số vịt là
120:(5-2)*5= 200 con
Gà là 200-120= 80con
Vì 2 lần số vịt bằng 5 lần số gà nên số vịt bằng \(\frac{5}{2}\)số gà.
Ta có sơ đồ sau:
Vịt: I-----I-----I-----I-----I-----I
Gà: I-----I-----I
Hiệu số phần bằng nhau là:
5 - 2 = 3 ( phần )
Số gà là:
120 : 3 x 2 = 80 ( con )
Số vịt là:
120 + 80 = 200 ( con )
Đáp số: .........
Vì 2 lần vịt bằng 5 lần gà nên số vịt bằng 5/2 số gà.
Số vịt là:
120 : (5 - 2) x 5 = 200 (con)
Đáp số: 200 con
Vì 2 lần số vịt bằng 5 lần số gà nên số vịt bằng 5/2 số gà.
Ta có sơ đồ sau :
Vịt |-----|-----|-----|-----|-----|
Gà |-----|-----|
Hiệu số phần là :
5 - 2 = 3 (phần)
Số vịt trong trang trại có là :
120 : 3 x 5 = 200 ( con vịt )
Số gà trong trang trại có là :
200 - 120 = 80 ( con gà )
Đáp số : Gà : 200 con.
Vịt : 80 con.
thang nao chon 80 con la ngu phai la 200 con
200 con !!!!
200 con đó bn
chuẩn 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
đáp án là :200 con
chuẩn 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
200 do nha
vậy kết quả đúng là 200 con !!!!!
200 nha bạn
Vì 2 lần số vịt bằng 5 lần số gà nên số gà bằng 2/5 số vịt
Trang trai do co so vit la
120 : 5-2 *5 = 200
Dap so 200 con
xin loi ko dau
chuẩn ! OK
200 con chắc 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%
200 con đó bạn.
lấy:120:(5-2)nhân 5=200 con
một trại chăn nuôi gia cầm có 40% số con gà 25 % số con vịt còn lại 231 con ngan hỏi trại đó có tất cả bao nhiêu con gia cầm ?
giải rõ ra nhé !
120:(5-2)x5=200(con)
200con
200 con k mk nha mk thi vòng 9 300 điểm đó chuẩn 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
200 chuan 10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%
200con
200 con dung !
200 con la dung
200 con la dung
200 con la dung
200 con la dung
200 con nha bn mk làm trên violympic rùi
troi oi bang 200 la dung roi
vi 120 : ( 5 - 2) * 5 =200 (con)
chac chan 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
200 con dung
1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%
số gà là : 80 ( con )
số vịt là : 200 ( con )
k mình nha !
200 con nhé!!!
Chắc chắn:10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%
Giải :
Theo đề , ta có sơ đồ :
Gà |----------|----------|
Vịt |----------|----------|----------|----------|----------|
Hiệu số phần bằng nhau :
5 - 2 = 3 ( phần )
Giá trị 1 phần :
120 : 3 = 40 ( con )
Số con gà là :
40 * 2 = 80 ( con )
Số con vịt là :
40 * 5 = 200 ( con )
Đáp số : 200 con
200 con mình thi rùi