If 1.5x=0.04y then the value of (y-x)/(y+x) is
x/y = 0.04/1.5 = 2/75 So (y-x)/(y+x) = (1 - x/y)/(1 + x/y) = (1 - 2/75)/ (1 + 2/75) = 73/77.
If 1.5x=0.04y then the value of (y-x)/(y+x) is
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