All problems

All problems tagged with: Permutations

Making Molecules If you look in the first column of the periodic table, you'll ... Periodic Table
Identical Plates You have two lego plates of the same size; the plates are ... Lego
Different Plates You have two lego plates of different sizes. One is m studs ... Lego
3x5 and 2x4 Plates You have two Lego plates; one is a 3x5 plate and one ... Lego
3x5 Plates You have two 3x5 Lego plates. You start with one plate flat ... Lego
2x4 Plates You have two 2x4 Lego plates. You start with one plate flat ... Lego