#862 · Combinatorics · Counting
Shelf Arrangement of Books
A library has 20 distinct Latin books and 6 distinct Greek books. In how many ways can a group of 5 books consisting of 3 Latin and 2 Greek books be placed on a shelf (order matters)?
H. S. Hall & S. R. Knight, Higher Algebra (1891) · Ch. XI. Permutations and Combinations, Examples XI.a, No. 22
Stuck? A gentle nudge
Your answer
Loading the math keyboard…
Type naturally — sqrt, pi, / and ^ become notation. Any equivalent form is accepted. Press Enter to check.