Question 19
Cindy lives in a town where the streets are arranged in a 3×3 grid as shown. Each unit-length grid edge is called a “street”. Cindy decides to take the longest path home. How many streets does she walk if each street can be used at most once?
Source limitation: the exact starting and home intersections are not marked. Do not assume an endpoint silently. This question is manually reviewed; if the pictured information does not determine a unique number, you may say so. A numerical guess will not be automatically marked right or wrong.
Source limitation: the exact starting and home intersections are not marked. Do not assume an endpoint silently. This question is manually reviewed; if the pictured information does not determine a unique number, you may say so. A numerical guess will not be automatically marked right or wrong.