13.1-13.2 Review

Which of the following is an example of combination?

• Form a passcode with 4 digits

• Students line up in a queue to assembly

• Choose 4 students in a class committee

• Choose the chairperson, secretary and treasurer in a club

Choosing 3 toppings for your sundae out of a list of 15.

• Permutation

• Combination

• Neither

How many combinations of 4 letters are possible from the letters A B C D E?

• 4

• 5

• 6

• 69

How would you solve?

A book club offers a choice of 8 books from a list of 40. In how many ways can a member make a collection?

• Permutation

• Combination

• Factorial

• MPC

A committee that consists of 6 teachers is to be chosen from 7 male teachers and 5 female teachers. Find the number of different committee that can be formed if 3 male teachers and 3 female teachers are required in the committee.

• 45

• 270

• 350

• 924

An additional mathematics exam paper 2 consists of 15 questions. Find the number of combinations to answer 12 questions if a student is required to answer 6 question from section A which consists 6 question, 4 question from section B which consists 5 questions and 2 questions from section C which consists 4 questions.

• 12

• 30

• 455

• 544

How many basketball games are played in a 10-team league if each team plays all other teams TWICE?

• 90

• 45

• 180

• 100

Homecoming has 7 candidates for King. How many ways can a King and a First Runner-up be chosen to form the Festival Court?

• 23

• 840

• 42

• 3,628,800

How many outfits are possible with 5 pairs of jeans, 8 t-shirts, and 2 pairs of shoes?

• 15
• 40
• 80
• 10

Permutation, combination, or neither?

The batting order for seven players on a 12 person team.

• combination

• permutation

• neither

• arithmetic