A hardware store stocks eight types of pipes, one of which is stainless steel (SS). Assuming there are at least 20 pipes of each type, how many ways can a total inventory of 20 pipes be distributed among the eight different types if the inventory must include at least four SS?

Answer rating: 100% (QA)

There are only one way to distribute 4 pipes these are taken in SS type Since there are at le... View the full answer