MATH REVIEWER

1.        Evaluate:  3! 4!

• A. 4

• B. 144

• C. 48

• D. 120

2. What do you call an arrangement of a finite number of objects taken some or all at a time?

• A. Combination

• B. Permutation

• C. Selection

• D. Sequence

3. How many 6-letter codes can be made from the word “MASTER”?

• A. 288

• B. 144

• C. 720

• D. 180

4. A customer who wants to buy an automobile has a choice of 3 makes, 5 body styles, and 6 colors. Find how many choices has he in the selection?

• A. 90

• B. 14

• C. 20

• D. 60

5. Using the digits 0, 1, 2, 3, 5, 7, 8, how many three-digit numbers can be formed if repetitions are not permitted?

• A. 120

• B. 216

• C. 240

• D. 180

6. There are 4 trails that lead to a scout camp on a hill. In how many ways can a scout go to the camp and go down by going up one trail and down by a different trail?

• A. 20

• B. 16

• C. 12

• D. 24

7. In how many ways can 4 boys and 4 girls be seated in a row of 8 seats if boys and girls are to occupy alternate seats?

• A. 1,080

• B. 3,120

• C. 1,152

• D. 3,288

8. Four couples are to sit at a round table. How many different sitting arrangements are possible if each couple insists on sitting together?

• A. 12

• B. 48

• C. 60

• D. 96

9. Which situation illustrates permutation?

• A. forming a committee of councilors

• B. selecting 10 questions out of 15 questions in a test

• C. choosing 2 literature books to buy from a variety of choices

• D. assigning rooms to conference participants.

10. If x = P(7, 4), y = P(8, 4) and z = P(9, 3), arrange x, y, z from smallest to largest.

• A. x, y, z

• B. z, x, y

• C. y, x, z

• D. x, z, y