- What is the number of permutations of four objects, using all four objects?
- 1
- 11
- 16
- 24
- How many permutations of 10 objects are possible, taking only 3 at a time?
- 30
- 120
- 720
- 1,000
- How many combinations of six objects are possible, taking only 2 at a time?
- 8
- 12
- 15
- 30
- What is the number of combinations possible, taking 3 objects from a set of 10?
- 30
- 120
- 720
- 1,000
- Classify each counting problem by writing permutation or combination in the answer box.
- In how many ways can 9 artists be judged for first, second, and third prize?
________________________ - How many three-ingredient sandwiches can you make from ham, turkey, roast beef, salami, cheese, and pickles?
________________________ - In how many ways can 9 students be seated at 5 dest?
- 45
- 126
- 15,120
- 59,049
- In how many ways can you form a group of 4 students from a class of 10?
- 40
- 210
- 5,040
- 10,000
Answers:
- 24
- 720
- 15
- 120
- a) permutation b) combination
- 15,120
- 210
Reference:
Complete Test Preparation for the GED Test 2014 by Steck-Vaughn
