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Counting Theory

Total questions: 25

Worksheet time: 25mins

Name
Class
Date
1.

How many ways can a club select a president, vice president, and a secretary from a group of 5 people?

a)

12

b)

60

c)

15

d)

30

2.

Homecoming has 7 candidates for King. How many ways can a King and a First Runner-up be chosen to form the Festival Court?

a)

23

b)

840

c)

42

d)

3,628,800

3.
What is the value of 5!
a)
25
b)
15
c)
120
d)
720
4.

How many ways ways can you arrange the letters in the word math?

a)

15

b)

4

c)

24

d)

48

5.
What does the P stand for in nPr?
a)
Partners
b)
Positions
c)
Papers
d)
Permutations
6.
7P2
a)
0
b)
7
c)
42
d)
210
7.
How many outfits are possible with 5 pairs of jeans, 8 t-shirts, and 2 pairs of shoes?
a)
15
b)
40
c)
80
d)
10
8.

Permutation, combination, or neither?

The batting order for seven players on a 12 person team.

a)

combination

b)

permutation

c)

neither

d)

arithmetic

9.
Permutation is the situation when
a)
A different result occurs when positions of objects are switched
b)
The same result occurs when positions of objects are switched
c)
counting principles are applied
d)
I don't know
10.

There are six people people, including you and your enemy, in a line. In how many ways can you arrange yourselves such that you and your enemy will never be beside each other?

a)

240 ways

b)

720 ways

c)

480 ways

d)

670 ways

11.

In how many ways can you arrange seven people to be seated in a round table?

a)

5040 ways

b)

120 ways

c)

720 ways

d)

840 ways

12.

How many distinct permutations can be made from the word INDEPENDENCE?

a)

1763200 permutations

b)

1664200 permutations

c)

1863200 permutations

d)

1663200 permutations

13.

In how many ways can you arrange the letters of the word EDUCATION such that the vowels are always together?

a)

120 ways

b)

14400 ways

c)

362880 ways

d)

6547234 ways

14.
How would you solve?
The model of car you are thinking of purchasing is available in nine different colors, three different styles and two sizes of motor. How many ways can you order the car?
a)
Permutation
b)
Combination
c)
Factorial
d)
MPC
15.

The 12 school teams are participating in a quiz contest, then the number of ways the first , second and third position may be won is ________.

a)

1, 230

b)

1, 320

c)

3, 210

d)

none of these

16.

The number of arrangements of the letters in the word 'FAILURE', so that the vowels are always coming together is ______ .

a)

576

b)

575

c)

570

d)

none of these

17.

The number of ways the letters of the word "COMPUTER" can be rearranged is __________ .

a)

40, 320

b)

40, 319

c)

40, 318

d)

none of these

18.

The number of 4-digit number greater than 5, 000 can be formed out of the digits 3, 4, 5, 6, and 7 (No digit is repeated). The number of such is _______.

a)

72

b)

27

c)

70

d)

none of these

19.

The number of ways the letters of the word 'TRIANGLE' to be arranged so that the word 'angle' will be always present is _______.

a)

20

b)

60

c)

24

d)

32

20.

4 digit numbers to be formed out of the figures 0, 1, 2, 3, 4 (no digit is repeated) then number of such numbers is _____.

a)

120

b)

86

c)

96

d)

none of these

21.

If the letters word 'DAUGHTER' are to be arranged so that vowels occupy the odd places, then number of different words are ______.

a)

2, 880

b)

676

c)

625

d)

576

22.

The number of ways in which 7 girls form a ring is ____.

a)

700

b)

710

c)

720

d)

none of these

23.

The number of ways in which 7 boys sit in a round table so that two particular boys may sit together is _____.

a)

240

b)

200

c)

120

d)

none of these

24.

The number of numbers lying between 10 and 1000 can be formed with the digits 2,3,4,0,8,9 is _____.

a)

124

b)

120

c)

125

d)

none of these

25.

The number of numbers lying between 10 and 1000 can be formed with the digits 2,3,4,0,8,9 is _____.

a)

124

b)

120

c)

125

d)

none of these