Permutations and Combinations

Question 1

Rotating the 4 tires on a car. Combination/Permutation/Neither?

Accepted Answer

Permutation

Question 2

Order matters in which of the following arrangements of items?

Accepted Answer

Permutations

Question 3

A salad bar has 8 different things. How many ways could you choose 4 or 5 toppings?

Accepted Answer

126

Question 4

20 People are in a spelling bee. How many ways can 1st and 2nd places be awarded?

Accepted Answer

380

Question 5

Standard license plates come in 4 digits using 1-9 with no repeat How many are possible

Accepted Answer

3024

Question 6

Possible security code combinations on an alarm system? Combination/Permutation/Neither

Accepted Answer

Permutation

Question 7

15 people are in your PE class and you are to select 4 of them for your team. How many ways?

Accepted Answer

1365

Questions 7