Question

已知2分之X=3分之Y=4分之Z,且X+Y+Z=1,求X、Y、Z的值.

Answer 1

x/2=y/3=z/4

2y=3x

3z=4y

2z=4x

5z=4(x+y)

x+y+z=1

x+y=1-z

5z=4(1-z)

9z=4

z=4/9

y=1/3

x=2/9