Different Plates

You have two lego plates of different sizes. One is m studs wide and n studs long, and the other is p studs wide and q studs long. You start with the m by n plate flat on the table in front of you. How many different ways can you position the p by q plate on top of the first one, so it is connected by at least one stud?

Permutations LEGO

Author: ehmatthes

This problem is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

All problems | Worksheet (PDF)