Enrol to start learning
Reading is open to everyone. Enrolling is free, and it is what unlocks the audio lessons, practice tests and progress tracking.
11. Permutation and Combination
This section
Practice test
12 questions on this section. Wrong answers show you what to read again.
Sign up to take itWhole chapter
Revision test
Mixed questions from across the chapter. Your answers get marked.
Sign up to take itQuick
Flashcard drill
4 cards from this lesson. Good the night before a test.
Try these first
- 1.
How many ways can you arrange 3 books from a shelf of 5 books?
Hint
Think of using the permutation formula.
- 2.
How many ways can you choose 2 toppings from 5 available pizza toppings?
Hint
This requires the combination formula.
- 3.
How many permutations are possible for arranging 4 people?
- 12
- 24
- 36
Hint
Remember the factorial concept.
- 4.
True or False: In combinations, the order of selection matters.
- True
- False
Hint
Recall what combinations actually involve.
- 5.
You have 5 different colored crayons. How many ways can you choose 3 colors if repetitions are allowed?
Hint
Visualize dividing selected items with dividers.
- 6.
If a sports team has 12 members and you need to arrange them in different roles, how many arrangements are possible if you need to assign 4 distinct roles?
Hint
Remember the formula for permutations.
Exercises
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting
4 more questions available
Enrol freeQuiz
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting
2 more questions available
Enrol freeChallenge Problems
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting