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14 questions
Harpo, Groucho, Chico, Zeppo, Gummo and Karl are running in a race. How many different orders of finish are possible?
36
64
720
46656
Yummy-Yum has prepared cupcakes with five different toppings: sprinkles, coconut, chocolate chip, oreo crumbles, and M&M’s. In how many ways can they arrange three of the cupcakes in a display case?
60
125
15
12
The letters A, B, C, and D are used to form four-letter passwords for entering a computer file. How many passwords are possible if letters can be repeated?
4 x 4 x 4 x 4 = 256
4 x 3 x 2 x 1 = 24
4 + 4 + 4 + 4 = 16
4 + 3 + 2 + 1 = 10
How many license plates consisting of three letters followed by three numbers are possible when no repetition is allowed?
26 x 25 x 24 x 10 x 9 x 8 = 11232000
26 x 26 x 26 x 10 x 10 x 10 = 17576000
26 x 25 x 24 x 9 x 8 x 7 = 7862400
26 x 26 x 26 x 9 x 9 x 9 = 12812904
How many license plate numbers consisting of three letters followed by three numbers are possible when repetition is allowed?
26 x 26 x 26 x 10 x 10 x 10 = 17576000
26 x 25 x 24 x 10 x 9 x 8 = 11232000
26 x 26 x 26 x 9 x 9 x 9 = 12812904
26 x 25 x 24 x 9 x 8 x 7 = 7862400
In Cornville, bicycle license plates have 2 letters followed by a 1-digit number. How many different license plates are possible?
6760
62
2600
6084
Sarah plays softball over the summer. If there are 10 players on the team, how many ways can the coach make a batting order that includes all players?
1
3628800
100
1814400
Brianna’s school day consists of six classes. How many different ways can her schedule be arranged?
720
36
100
500
In how many different ways can 4 different books be arranged on the shelf?
4 x 3 x 2 x 1 = 24
4 x 4 x 4 x 4 = 256
4 + 3 + 2 + 1 = 10
4 + 4 + 4 + 4 = 16
The top five runners at the cross-country meet will receive trophies. If there are 22 runners in the race, in how many ways can the trophies be awarded?
22 x 21 x 20 x 19 x 18 = 3160080
22 x 22 x 22 x 22 x 22 = 5153632
5 x 4 x 3 x 2 x 1 = 120
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