Grades 5-6 Video Solutions 2024-2024_5-6

Video Transcription

Video Summary

Martin needs a minimum of 3 colors to paint the train routes so that no two intersecting routes share the same color. The routes are split into three groups where no routes in the same group intersect: group one includes routes 1 and 3, group two includes routes 2 and 7, and group three includes routes 4, 5, and 6. This grouping allows each group to be painted with the same color, confirming that 3 colors are both necessary and sufficient.

Keywords

train routes

coloring problem

graph theory

non-intersecting

minimum colors