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Permuations and Combinations
Permuations and Combinations
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Permutations Combinations
Flashcards
20 cards
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Practice quiz
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Questions
20
Answers
1
From 9 names on a ballot, 4 will be elected to attend a convention. How many committees?
126
1512
15120
3024
2
There are 10 students in a spelling bee. How many ways can they come in 1st and 2nd place?
1
362800
90
45
3
--
D
C
A
B
4
Kathy can choose 2 kittens from a litter of 5. How many possibiliites are there?
20
120
10
2
5
How many different ways can 7 people finish in a race?
5040
49
35
210
6
How many 3-letter codes can be made from A, B, C, D, E if no letter can be used more than once?
20
40
60
10
7
A license plate has 3 letters and 4 numbers with repetition allowed. How many possible plates?
12
15600
175760000
78624000
8
--
25
100
75
50
9
--
69090840
1482
575757
195
10
How many 6-letter arrangements can be made from the word NUMBER?
720
1
120
6
11
--
118030188
29400
11362120
245
12
How many arrangements can be made from the word MATHEMATICS?
10080
4989600
120960
1532470
13
--
9
64
12
16
14
Tbere are
68
680
2380
136
15
Out of 7 consonants & 4 vowels, how many words of 3 consonants and 2 vowels can be formed?
21400
25200
1050
210
16
How many ways can a king, queen, jester be selected from a group of 20 people?
1140
2432932008000
6840
60
17
--
6760000
208
3276000
8
18
--
2380
184969
2640
660
19
--
A
D
B
C
20
How many permutations are there for the letters in the word BANANAS?
720
120
1680
420
