There are 4 copies each of 4 different books. In how many ways can they be arranged in a shelf?
Assume the 4 copies of each book are indistinguishable, the number of arrangements is
Former Senior Instructor, Manhattan GMAT and VeritasPrep
Vice President, Midtown NYC Investment Bank, Structured Finance IT
MFE, Haas School of Business, UC Berkeley, Class of 2005
MBA, Anderson School of Management, UCLA, Class of 1993