1

Part of 2020 Regional Olympiad of Mexico West

Problems(1)

no of of paths from A to B

Source: Mathematics Regional Olympiad of Mexico West 2020 P1

In the following figure, it is desired to go from point

A

B

by walking only along the lines of the figure up and to the right. How many different paths can we take? https://cdn.artofproblemsolving.com/attachments/7/c/dce2e0bcb69c9e2014474ab3699b4ef0470497.png