Maths Olympiad Prep

Library / CEMC Pascal /350 of 603

CEMC Pascal

Combinatorics Difficulty 1.9 Junior Find the answer

For how many of the given drawings can the six dots be labelled to represent the links between suspects?

A number or a short expression. Fractions can be typed as 3/2, and spacing doesn't matter.

Solution

Two of the five drawings can be labelled to represent the given data.

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: Omni-MATH, licensed Apache-2.0. Statement reproduced verbatim; metadata (topic, difficulty) added by this project.