Question

If 50% of (x-y) = 30% of (x+y) then what % of x is y?

Answer 1

Answer:

25%

Step-by-step explanation:

1/2(x-y)=3/10(x+y)

5x-5y=3x+3y

2x=8y

x/y=4/1

y=1/4×100

y=25%