3x/4 : (x/4+3-x) = 3 :2
2. Set xKG water.
35: 100 =(2000 * 65%):(2000+X)
3. If the length is x, the width is (140-2x)/2.
x : ( 140-2x)/2 =4:3
4. Let the number of copies to be completed by each person be X (the number of copies of two people should be equal).
x/6 : (x-96)/6 = 5:4
5, containing liquid x g.
X: 8008 = 1: 100 1 because medicine: water = 1: 1000, medicine: medicinal liquid =1:100/kloc.
6. Suppose there is a ***x student in grade six, and then there are girls (x-3)/2 boys (x+3)/2.
(x+3)/2:(x-3)/2 = 13: 12