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Figure This!
How many colors
of states are on question marks
a map of the US?
graphic1 Mapmakers use different colors on states that share a border. What is the least number of colors needed to color a map of the states west of the Mississippi River in this way?
graphic1 challenge animation graphic1
Need a Hint?
graphic1 Assigning different colors to objects or decisions is a useful technique for analyzing complex situations. Similar methods can be applied to scheduling meetings, routing air traffic, and designing computer circuit boards.

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