### Home > CCA2 > Chapter 10 > Lesson 10.1.3 > Problem 10-52

10-52.

Your midterm exam contains 12 questions and you must answer any 10. Homework Help ✎

How many different combinations of questions are possible?

If everyone must answer questions one, two, and three, how many different combinations are possible?

_{12}*C*_{10} = 66

_{9}*C*_{7} = 36