Question

Một trại chăn nuôi gia cầm có số vịt nhiều hơn số gà là 120 con. Hỏi có bao nhiêu con vịt, biết rằng 2 lần số vịt bằng 5 lần số gà?
Trả lời: Số vịt có là con

Answer 1

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

Answer 2

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: .........

Answer 3

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

Answer 4

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.

Answer 5

_{thang nao chon 80 con la ngu phai la 200 con}

Answer 6

200 con !!!!

Answer 7

200 con đó bn

chuẩn 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Answer 8

đáp án là :200 con

chuẩn 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Answer 9

200 do nha

Answer 10

vậy kết quả đúng là 200 con !!!!!

Answer 11

200 nha bạn

Answer 12

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

Answer 13

chuẩn ! OK

Answer 14

200 con chắc 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%

Answer 15

200 con đó bạn.

lấy:120:(5-2)nhân 5=200 con

Answer 16

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 !

Answer 17

120:(5-2)x5=200(con)

Answer 18

200con

Answer 19

200 con k mk nha mk thi vòng 9 300 điểm đó chuẩn 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

Answer 20

200 chuan 10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%

Answer 21

200con

Answer 22

200 con dung !

Answer 23

200 con la dung

200 con la dung

200 con la dung

200 con la dung

Answer 24

200 con nha bn mk làm trên violympic rùi

Answer 25

troi oi bang 200 la dung roi 

vi 120 : ( 5 - 2) * 5 =200 (con) 

chac chan 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

Answer 26

200 con dung

1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%

Answer 27

số gà là : 80 ( con )

số vịt là : 200 ( con )

k mình nha !

Answer 28

200 con nhé!!!

Chắc chắn:10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%

Answer 29

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

Answer 30

200 con mình thi rùi