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UKMT Junior Mathematical Challenge, 2016

Algebra Difficulty 1.0 Junior Find the answer United Kingdom

What is the value of $\dfrac{2+4+6+8+10+12+14+16+18+20}{1+2+3+4+5+6+7+8+9+10}$ ?

(A) $2$ (B) $10$ (C) $20$ (D) $40$ (E) $1024$

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