If x = 0.04 and y = 1/x, what is the value of (y - x) / y?

✓ Correct Answer: Option B

y = 1/0.04 = 25. The expression is (25 - 0.04) / 25 = 24.96 / 25 = 0.9984. Alternatively, (y-x)/y = 1 - x/y = 1 - x/(1/x) = 1 - x^2 = 1 - (0.04)^2 = 1 - 0.0016 = 0.9984.