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Algebra Difficulty 1.0 Junior Find the answer United Kingdom

Used in measuring the width of a wire, one mil is equal to one thousandth of an inch. An inch is about $2.5$ cm. Which of these is approximately equal to one mil?

(A) $\frac{1}{40}$ mm (B) $\frac{1}{25}$ mm (C) $\frac{1}{4}$ mm (D) $25$ mm (E) $40$ mm

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