2020 AMC 10B Problem 11
Ms. Carr asks her students to read any of the books on a reading list. Harold randomly selects books from this list, and Betty does the same. What is the probability that there are exactly books that they both select?
Full credit goes to MAA for authoring these problems. These problems were taken on the AOPS website.
Show/Hide Problem Tags
Problem Tags: Counting and probability
Want to contribute problems and receive full credit? Click here to add your problem!
Please report any issues to us in our Discord server
Go to previous contest problem (SHIFT + Left Arrow) Go to next contest problem (SHIFT + Right Arrow)