CEMC Fermat, 2000

Geometry Difficulty 2.0 Junior Find the answer Canada

Rectangle $ABCD$ is divided into five congruent rectangles as shown. The ratio $AB:BC$ is

(A) $3:2$ (B) $2:1$ (C) $5:2$ (D) $5:3$ (E) $4:3$

Figure for this problem

We don't reproduce this publisher's solutions. Their own solution is here — work the problem first.

Want a route through all this instead of an archive? The track puts 2,604 problems in a working order, from Junior Challenge level to the IMO shortlist.

Source: CEMC, University of Waterloo, licensed CC-BY-NC-4.0. Statement reproduced verbatim; metadata (topic, difficulty) added by this project. Solutions are the publisher's, linked not copied.