A box contains $n$ shirts, of which $60\%$ are white in color. Three out of every four non-white shirts have a tailo

A box contains $n$ shirts, of which $60\%$ are white in color. Three out of every four non-white shirts have a tailoring defect. What percentage of white shirts do not have a tailoring defect?

(1) If one shirt is selected at random from the box, the probability that it will have a tailoring defect is $0.5.$
(2) The probability that a shirt with a tailoring defect will be white in color is $\dfrac25.$

Answer: D

Source: e-GMAT

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