Library / /7 of 149

, 2026

Algebra Difficulty 1.0 Junior Find the answer United Kingdom

A fly has six legs and a spider has eight legs. A group of three flies and two spiders has the same number of legs in total as a group of seven chickens and some dogs. How many dogs are in the second group?

(A) $2$ (B) $3$ (C) $4$ (D) $5$ (E) $6$

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.