Library / UKMT Grey Kangaroo /135 of 242

UKMT Grey Kangaroo, 2022

Geometry Difficulty 2.0 Junior Find the answer United Kingdom

Tony the gardener planted tulips and daisies in a square flowerbed of side-length $12$ m, arranged as shown. What is the total area, in $\text{m}^2$ , of the regions in which he planted daisies?

(A) $48$ (B) $46$ (C) $44$ (D) $40$ (E) $36$

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: UK Mathematics Trust, licensed © UK Mathematics Trust; past papers published free at ukmt.org.uk. Statement reproduced verbatim; metadata (topic, difficulty) added by this project. Solutions are the publisher's, linked not copied.