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Problem 90

Geometry Difficulty 1.0 Find the answer UKMT Intermediate Mathematical Challenge · United Kingdom · 2017

The angles of a quadrilateral are in the ratio $3:4:5:6$ . What is the difference between the largest angle and the smallest angle? (A) $30^\circ$ (B) $40^\circ$ (C) $50^\circ$ (D) $60^\circ$ (E) $70^\circ$

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