Question

If 50% of (x-y)=30% of (x+y),what per cent of x is y?

Answer 1

50% of (x-y)=30% of (x+y)
50/100 of (x-y) =30/100 of (x+y)
1/2(x-y)=3/10(x+y)
x-y/2=3x+3y/10
10x-10y=6x+6y
10x-6x=10y+6y
4x=16y
x=4y
x/y=4/1
x: y=4:1