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UKMT Junior Mathematical Challenge, 2019

Algebra Difficulty 1.0 Junior Find the answer United Kingdom

Which of these is equal to $(0.1 + 0.2 + 0.3 - 0.4) \div 0.5$ ?

(A) $0.01$ (B) $0.02$ (C) $0.04$ (D) $0.1$ (E) $0.4$

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