Meet Up Catch-Up Problem Combination: Problem 3

Problem: Ants Antonia and Buzz start from points A and B towards each other. Right after arriving at one of the starting points, they immediately turn the other direction. On Antonia's third time to point B, Buzz had already made 5 trips back to point B. Up to this point, how many times have the two ants met? (This counts both meeting up and catching up)

Key: Zig-zag diagrams

Please consider subscribing, here's our website: https://inquisitivekids.github.io