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UKMT Junior Kangaroo, 2019

Geometry Difficulty 3.0 AMC 10/12 Find the answer United Kingdom

Two rectangles of dimensions 8 cm by 10 cm and 9 cm by 12 cm overlap as shown in the diagram. The area of the black region is $37$ cm $^2$ . What is the area of the grey region?

(A) $60$ cm $^2$ (B) $62$ cm $^2$ (C) $62.5$ cm $^2$ (D) $64$ cm $^2$ (E) $65$ cm $^2$

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