1.) A group of 9 people is going to be formed into committees of 4,3, and 2 people. How many committees can be formed if no person can serve on more than one committee?
2.) In men's tennis tournament at wimbleton , two finalists, A and B, are competing for the title, which will be awarded to the first player to win three sets. in how many different ways can the match be completed?
3.) A state motor vehicle department requires learners to pass a written test on the motor vehicle law of the state. The exam consists of ten true-false questions, of which eight must be answered correctly to qualify for a permit. In how many different ways can a learner who answers all questions on the exam qualify for a permit?