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UKMT Junior Mathematical Challenge, 2015

Algebra Difficulty 1.0 Junior Find the answer United Kingdom

The difference between $\dfrac{1}{3}$ of a certain number and $\dfrac{1}{4}$ of the same number is 3. What is that number?

(A) $24$ (B) $36$ (C) $48$ (D) $60$ (E) $72$

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