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UKMT Intermediate Mathematical Challenge, 2015

Algebra Difficulty 1.0 Junior Find the answer United Kingdom

What is a half of a third, plus a third of a quarter, plus a quarter of a fifth?

(A) $\frac{1}{1440}$ (B) $\frac{3}{38}$ (C) $\frac{1}{30}$ (D) $\frac{1}{3}$ (E) $\frac{3}{10}$

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