1. I have a pile of n identical ping-pong balls and two boxes, labelled Box 1 and Box 2. How many different ways are there to distribute the n balls into the two boxes? Explain why your answer is correct.
2. How many ways are there to distribute n ping-pong balls among k boxes?
3. I have n books with n different titles. I want to put them on shelves in my library. How many different ways are there to arrange them on one shelf? On two shelves? On k shelves?
Get Answers For Free
Most questions answered within 1 hours.