Solutions of several forts of Problems, deduced from the Rules laid down in the Introduction.

This chapter presents solutions of several forts of problems related to the concept of probability. Permutations are the changes which several things can receive in the different orders in which they may be placed, being considered as taken two and two, three and three, four and four, etc. Combinations are the various conjunctions which several things may receive without any respect to order, being taken two and two, three and three, four and four. The chapter presents corresponding corollaries and demonstrations for the problems related to the concept of probability. It also includes solution to the problems that relate to permutations and combinations.