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UKMT Intermediate Mathematical Challenge, 2025

Algebra Difficulty 1.0 Junior Find the answer United Kingdom

What is $5 \div \left( \left( (5 \div 5) \div (5 \div 5) \right) \div 5 \right)$ ?

(A) $\dfrac{1}{25}$ (B) $\dfrac{1}{5}$ (C) $1$ (D) $5$ (E) $25$

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